November 1992 oe) Edition 3.1 FU} ITSU DATA SHEET MB84256A-70/-70L/-70LL/-10/-10L/-10LL CMOS 256K-BIT LOW POWER SRAM 32,768 WORD x 8-BIT CMOS STATIC RANDOM ACCESS MEMORY WITH DATA RETENTION The Fujitsu MB84 256A is a32,768-word by 8-bit static random access memory fabricated with a CMOS silicon gate process. The memory utilizes asynchronous circuitry and may be maintainedin any state for an indefinite period of time. All pins are TT Lcompatible, anda single +5V power supply is required. The MB84256A is ideally suited for use in microprocesser systems and other applications where fast access time and ease of use are required. All devices offer the advantages of low power dissipation, low cost and high performance. PLASTIC PACKAGE DIP-28P-M02 @ Organization: 32,768 x 8 bits Fastaccess time: 70nsmax. (MB84256A-70/-70L/-70LL) 100 ns max. (MB84256A-10/-10L/-10LL) Completely static operation: No clock required TTL compatible inputs/outputs Three state outputs Single +5V power supply, + 10% tolerance Low power standby: CMOS level: 5.5 mW max. (MB84256A-70/-10) 0.55 mW max. (MB84256A-70L/-70LL/-10L/-10LL) PLASTIC PACKAGE TTLievel: 16.5 mWmax. (MB84256A-70/-70L/-70LL/- 10/-10L/-40LL) DiP-28P-M04 SOP PACKAGE; See Page 5-14 D: ion: 2. in. * Data retention: 2.0V min TSOP PACKAGE; See Page 5-15, 5-16 Standard 28-pin Plastic Packages: DIP (600mil) MB84256A-xx(U/LL)P Skinny DIP (300 mil) | MB84256A-xx(L/LL)P-SK SOP MB84256A-xx(L/LL)PF . TSOP (normal bend) MB84256A-xx(L/LL)PFTN PIN ASSIGNMENT TSOP (reverse bend) MB84256A-xx(U/LL)PFTR ate qq 1 28 = 12 2 27 ABSOLUTE MAXIMUM RATINGS (see NOTE) 7 Ay 43 265 Ars Me Se : 5 5 24(5 Ag Supply Voltage Veo -0.5 to +7.0 Vv oj 5 a 3 y Ag Gye TPYEW a1 Aig Input Voltage 1N -0.5 to Veg +0.5 Ay Cle 20H tS 1 Ao C4 10 195 vo, Output Voltage Vuo 0.5 to Veg +0.5 Vv vO, C411 1380 vO, " VO2 (12 1715 V6 Temperature Under Bias Tpias -10 to +85 C VOz 413 16] VOs GNOC 14 15 WO, Storage Temperature Tsta 40 to +125 Cc NOTE: Permanent device damage may occur if the above Absolute Maximum Ratings Guinage doe to nlat etalevoleges Protect the inputs, agains! are exceeded. Functional operation should be restricted to the conditions as it is advised that normal precautions be taken to avoid detailed in the operational sections of this data sheet. Exposure to absolute application of any voltage higher han maximum rated voltages maximum rating conditions for extended periods may affect device reliability. to this high impedance circu. Copyright 1992 by FUJITSU LIMITED 5-3 Me 3749756 0005991 117 ONMB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL Fig. 1 MB84256A BLOCK DIAGRAM AO =aO VEC At A2 <+-O GND AS ADDRESS | | . 256 x 128.x8 AA BUFFER MEMORY CELL ARRAY AS e AG A7 AB AY VO GATE & 10 ADDRESS Att BUFFER COLUMN DECODER A13 Al4 cs OE WE BUFFER DATA VO BUFFER cs a _{>-_{s) vot Os 0s 107 voz vos OS (108 TRUTH TABLE cS | OF | WE MODE CURRENT VO PIN H x x Not Selected High-Z L H H DOUT Disable cc High-Z L L H Read icc DOUT L X L Write cc DIN CAPACITANCE ia z25c, t = 1mHz) Parameter Symbol Min Typ Max Unit WO Capacitance (VIO = OV) cvo 8 pF Input Capacitance (VIN = OV) GIN 7 pF MB 3749756 ooosode O55MB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL RECOMMENDED OPERATING CONDITION (Referenced to GND) Supply Voltage Veco 45 5.0 5.5 Vv Ambient Temperature Ta 0 70 DC CHARACTERISTICS (Recommended operating conditions otherwise noted.) 2 Vec-0.2V Standby Supply Current CS=Vin Vea =VnorViL, CS =Va lour = OMA Cycle = Min. Active Supply Current Operating Supply Current Input Leakage Current Duty = 100% lour = O0mA Vin = OV to Voc Vyo = OV to Voc CS = Vy or OE = Vy or WE = Vi. Output Leakage Current Input High Voltage Input Low Voltage Output High Voltage lon = -1.0mA Output Low Voltage Vor lop = 2.1mA Note: All voltages are referenced to GND. *. -3.0V min. for pulse width less than 20 ns.(Vi_ min. =-0.3V at DC level.) Fig. 2 - AC TEST CONDITIONS @ Output Load BV e Input Pulse Levels: 0.6V to 2.4V + e Input Pulse Rise & Fall Times: 5ns (Transient between 0.8V and 2.2V) Timing Reference Levels: Input: Vi. 20.8V, Vyi=2.2V R Output: Vo. =0.8V, Vou=2.0V 4 * Including Jig and stray capacitance Dou (VO) me TS Rg Re CL Parameters Measured * T R, Load! | 18kQ} 9902 | 100pF Loadil | 18kKQ}/ 990Q | 5SpF except tovz, toyz. wiz, and twuz toxz, tcHz. twiz, and twuz me 39749756 0005993 TOTMB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL AC CHARACTERISTICS (Recommended operating conditions otherwise noted.) READ CYCLE *1 Read Time Address Access Time *2 $1 Access Time *3 Output Enable to Output Valid Output Hold from Address Select to Output Low-Z *4 Output Enable to Output Low-Z *4 Select to 4 Enable to High-z *4 READ CYCLE TIMING DIAGRAM *1 READ CYCLE 1: ADDRESS CONTROLLED*2 tRC ADDRESS >: tAA ye- 10H DOUT PREVIOUS DATA VALID XX A DATA VALID 1 : READ CYCLE 2: TS CONTROLLED*3 tRC | ADDRESS St tAA ts Ms PA Acs "| tCHZ - (CLZ+] OE SSS Zz a 10E ba tOHZa = tOLZm HIGH- DOUT Z DATA VALID ee 2 bX] : Undefined Note: *1 WEis high for Read cycle. *2 Device is continuously selected, CS = OF = VIL. *3 Address valid prior to or coincident with GS transition low. *4 Transition is measured at the point of 500mV from steady state voltage with specified Load II in Fig. 2. 5-6 me 3749756 0005994 I2bMB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL WRITE CYCLE *1*2 Write Cycle Time *2 Address Valid to End of Write . Select to End of Write Data Valid to End of Write Data Hold Time Write Pulse Width Write Time *4 WE to Low-z *5 WE to 5 ala jo|gjoisisiais WRITE CYCLE TIMING DIAGRAM 1 *2 WRITE CYCLE 1: WE GONTROLLED Le L ADDRESS < two tAW wa- tWR | OE cw s NN ASL LS LL LZ hke tAS , twP _ ee WE 1DW tDH DIN HIGH-Z go DATA VALID HIGH-Z q tWHZ = tWLZ pout XXKAKXKX KX] : Undefined Note: *1 IfOE, CS are in the READ Mode during this period, I/O pins are in the output state so that the input signals af opposite phase to the outputs must not be applied. *2 if OS goes high simultaneously with WE high, the output remains in high impedance state. *9 All write cycle are determined from last address transition to the first address transition of the next address. *4 tWR is defined from the end point of WRITE Mode.. *5 Transition is measured at the point of +500mV from steady state voltage with specified Load Tin Fig. 2. Me 3749756 0005995 4bcMB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL WRITE CYCLE TIMING DIAGRAM 1 *2 WRITE CYCLE 2: CS CONTROLLED ADDRESS OE cs WE DIN DATA VALID DOUT KX] : Undefined Note: *1 If OF, 05 are in the READ Mode during this period, 1/O pins are in the output state so that the input signals of opposite phase to the outputs must not be applied. *2 if TS goes high simultaneously with WE high, the output remains in high impedance state. *3 All write cycle are determined from last address transition to the first address transition of the next address. *4 tWR is defined from the end point of WRITE Mode.. *5 Transition is measured at the point of t500mV from steady state voltage with specified Load II in Fig. 2. 5-8 me 3749756 0605996 775 cccMB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL DATA RETENTION CHARACTERISTICS (Recommended operating conditions otherwise noted.) Data Retention Supply Voltage 1 VOR 2.0 58 v Standard 1.0 mA Data Retention Supply Current *2 L-Version IDR 1.0 50 HA LL-Version 1.0 503 Data Retention Setup Time iDRS 0 ns Operation Recovery Time tR tRC ns Note: *1 CS 2 VDR-0.2V *2 VDR = 3.0V, CS 2 VDR-0.2V *3 IDR = 5 1A max. at VDR = 3.0V, TA = 40C DATA RETENTION TIMING DATA RETENTION Data Retention Mode vec 4.5V VOR 4.5V Nee aoe coe cee es es ee ee ee ee oe oe oe tORS S = VOR -0.2V 5-9 Me 3749756 0005997 635MB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL TIPICAL CHARACTERISTICS CURVES (CC1, iCC2 NORMALIZED POWER SUPPLY CURRENT ICC NORMALIZED POWER 1SB1, ISB2 NORMALIZED POWER SUPPLY CURRENT SUPPLY CURRENT Fig. 3 - NORMALIZED POWER SUPPLY CURRENT vs. SUPPLY VOLTAGE 14 he 125C 12 Z 1.0 0.8 0.6 4.0 5.0 6.0 VCC, SUPPLY VOLTAGE (V) Fig. 5 NORMALIZED POWER SUPPLY CURRENT vs. FREQUENCY 1 to] Ta = +25C 1.4 Vog = 5.0V 1.0 7 0.9 aS 0.8 bearer 0.7 1 23 10 2030 f, FREQUENCY (MHz) Fig. 7~ NORMALIZED POWER SUPPLY CURRENT vs. SUPPLY VOLTAGE Veo = 5.0V co = 5. 10.0 lass 5.0 7 1.0 7 les 0.5 V4 0 20 40 60 80 - TA, AMBIENT TEMPERATURE (C) ICC NORMALIZED POWER SUPPLY CURRENT SUPPLY CURRENT ISB1, ISB2 NORMALIZED POWER tAA, tACS, tOE NORMALIZED ACCESS TIME Fig. 4 - NORMALIZED POWER SUPPLY CURRENT vs. AMBIENT TEMPERATURE | Voc = 5.0V 1.2 14 N 1.0 A 0.9 0.8 0 20 40 60 80 TA, AMBIENT TEMPERATURE (C) Fig. 6 - NORMALIZED POWER SUPPLY CURRENT vs. SUPPLY VOLTAGE 1 J Ty = 425C tase 1.4 lass 12 VA 1.0 0.8 os} CA TY 4.0 .0 6.0 VCC, SUPPLY VOLTAGE (V) Fig. 8 - NORMALIZED ACCESS TIME vs. SUPPLY VOLTAGE T ae taa. tacs Ta = +25C 1.2 1.1 N ~ toe 1.0 a 0.9 Pn 0.8 40 45 50 55 6.0 VCC, SUPPLY VOLTAGE (V) 5-10 Me 3749756 0005998 571MB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL TIPICAL CHARACTERISTICS CURVES (Continued) 1.2 1.4 1.0 0.9 ACCESS TIME 0.8 tAA, tACS, tOE NORMALIZED Fig. 9 - NORMALIZED ACCESS TIME vs. AMBIENT TEMPERATURE i od Voc = 5.0V , y Z y LZ ra LZ w Oo 20 40 60 80 T,, AMBIENT TEMPERATURE (C) tAA, tACS, tOE NORMALIZED ACCESS TIME Fig. 10 - NORMALIZED ACCESS TIME ind 1.5 = o vs. LOAD CAPACIYANCE qT | . Ta = +25C toe Voc = 5.0V / tas, tacs fo Y / A La 100 200 300 400 500 C,, LOAD CAPACITANCE (pF) Me 9749756 0005999 406 5-11MB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL PACKAGE DIMENSIONS (Suffix: P) 28-LEAD PLASTIC DUAL IN-LINE PACKAGE (CASE No.: DIP-28P-M02) RAAT) INDEX a he an Se Dara a he Gd le he he he A +.008 +0.20 1.4077 908 (35.739 So) (0.25:0.05) +.020 039 *5 sl | ,062(1.58) MAX (0.90 2050) Ls 195(4.96) MAX .118(3.00) MIN / .100(2.54) ogo +.020 | | .020(0.51) MIN TYP wd .018:,003 (1.524250) TT (9 4840.08) Dimensions in 1991 FUJITSU LIMITED D28006S-2C inches (millimeters) 5-12 MB 3749756 0O0b000 425MB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL PACKAGE DIMENSIONS (Continued) (Suffix: P-SK) 28-LEAD PLASTIC DUAL IN-LINE PACKAGE (CASE No.: DIP-28P-MO4) 1.392+-008 (95 96+0.20 pec =012 95.989 39) | 15MAX INDEX Po + oO .2604.010 .300(7.62) (6.60:40.25) INDEX-2 ve ae i+ | 034 +012 050 +012 . 0. 960-30) we (0.26:40.05) TiiftnonioiniAnAAnAnnAnif 4 .207(5.25)MAX .118(3.00)MIN .050(1.27) MAX : : (0.46+0.08) .020(0.51)MIN TYP Dimensions in 1991 FUJITSU LIMITED D28018S-2C inches (milimeters) -13 W@@ 3749756 OOOb001 7b4MB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL PACKAGE DIMENSIONS (Continued) (Suffix: PF) FPT-28P-M02 28-LEAD PLASTIC FLAT PACKAGE (CASE No.: FPT-28P-M02) 110(2.80) MAX = . 699:910 (47 7540-25, (MOUNTING HEIGHT) <_ 008 0.20 i 0(0) MIN (STAND OFF HEIGHT) HR RRRRRRHRAHHE ; 4654.012 (11.80:0.30) A02t.012 INDEX 339.008 (10.2040.30) oe ee IT | UpeUUREEUOHEED SS cusn | .018+.004 006+.002 >| } | @.005(0.13\9 TYP (0.4540. 10) 10.1540.05) | Details of A part =| I | 008(0.20) t | qT J - t ' | iz I i [| | | | | | | | | if nary 1 ea 024(0.60) | yd | ,007(0.18) I | I u j | MAX | 027(0.68) | MAX i J P=) ~ .650(16.51) REF } Dimensions in inches (millimeters) 1991 FUJITSU LIMITED F28011S-4C 5-14 Me 3749756 OOOb00e LTOMB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL PACKAGE DIMENSIONS (Continued) (Suffix: PFTN) PIN ASSIGNMENT (NORMAL BEND) C4 ro co 22 2i Aw An [23 20 CB, A 2 195 Wo, A CI 2s 18 fF vo, Ass (I 28 1779 0, WE Cl 27 161-9 vo, Vec CJ 28 16 C9 vO Au 147 ano An CJ 2 302) Ww, +O 3 2f Ww, a4 no, a5 10 [= Ae A Ci6 sa FPT-28P-M03 eC? ss TOP VIEW 28-LEAD PLASTIC FLAT PACKAGE (CASE No.: FPT-28P-M03) rteoereorrer re or rrr oe ee 7 | Details of A part | ! ,006(0.15) | MAX | I ' | + | | .014(0.35) | : wa | | | | | | ,006(0.15) .010(0.25) .28+.008 315+.008 (13.4040.20) 0437 20% 4 1942-47 465.008 006+.002 (8.00+0.20) 0021 0.05 | 1" 20 0.15+0.05 .28% (7.18) (MOUNTING HEIGHT) | (11.80:0.20) (0.1520.05) REF 0217(0.55) | | | <7] _.004(0.10) TYP _ o(0) MIN (STAND OFF HEIGHT) .488+.008 020+.004 004(0.09)@ (12.4040.20) (0.5040.10) (0.20+0.10) Dimensions in 1991 FUJITSU LIMITED F28018S-4C inches (millimeters) 5-15 Me 3749756 0006003 537MB84256A-70/-70L/-70LL MB84256A-10/-10L/-10LL PACKAGE DIMENSIONS (Continued) (Suffix: PFTR) PIN ASSIGNMENT (REVERSE BEND) AC); af ACs 9A A&C) 5 wR A A qo 4 1t yo, C3 12, A: [2] 2 137 wy Aw 1 14[ GND Veo Ty 28 15-30, WE [I 27 16 fF v0; Avs CJ 26 17,7] vo, a Cl 25 18) vo, Ae Cy 24 192 vo, A, Cj 23 20 C95, FPT-28P-M04 rz 21s TOP VIEW 28-LEAD PLASTIC FLAT PACKAGE (CASE No.: FPT-28P-M04) .014(0.35) LEAD No. MAX .006(0.15) .010(0.25) 020+.004 (0.5040. 10) 0217(0.55) , | 0(0) MIN (STAND OFF HEIGHT) TYP | gecanaananeany1 " o0et.002 4.007,, .. 40.17 043 1.40 ) -.002(1-19_9 95 (11.80:+0.20) (0. 16:10.05) 315+.008 "MOUNTING HEIGHT) .528+.008 (8.00+0.20) (13.4040.20) | Dimensions in 1901 FUNTSU LIMITED F28019S-4C inches (millimeters) 5-16 Me 3749756 OOObLOO4 473 Mm