W83176R-400
W83176G-400
Winbond Current Mode
Differential Buffer
for PCI Express and SATA
Date: May/16/2006 Revision: 0.6
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
Publication Release Date: May, 2006
- I - Revision 0.6
W83176R-400/W83176G-400 Datasheet Revision History
PAGES DATES VERSION WEB VERSION MAIN CONTENTS
1 n.a. 05/11/04 0.5 n.a. First publish
2 7 05/16/06 0.6 n.a. Add lead free part
3
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5
6
7
8
9
10
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
- II -
Table of Content-
1. GENERAL DESCRIPTION ......................................................................................................... 1
2. PRODUCT FEATURES .............................................................................................................. 1
3. PIN CONFIGURATION ...............................................................................................................1
4. BLOCK DIAGRAM ...................................................................................................................... 2
5. PIN DESCRIPTION..................................................................................................................... 3
5.1 Clock Outputs ..............................................................................................................................3
5.2 Power Pins...................................................................................................................................3
6. I2C CONTROL AND STATUS REGISTERS............................................................................... 4
6.1 Register 0: Control Register (Default: 07h) ................................................................................4
6.2 Register 1: Control Register (Default: FFh) ................................................................................4
6.3 Register 2: Control Register (Default: 00h) ................................................................................4
6.4 Register 3: Reserved Register (Default: 00h) ............................................................................5
6.5 Register 4: Winbond Chip ID – Project Code Register (Default: 11h).......................................5
6.6 Register 5: Test Register (Default: 00h) .....................................................................................5
7. ACCESS INTERFACE ................................................................................................................6
7.1 Block Write protocol.....................................................................................................................6
7.2 Block Read protocol ....................................................................................................................6
7.3 Byte Write protocol ......................................................................................................................6
7.4 Byte Read protocol......................................................................................................................6
8. ORDERING INFORMATION....................................................................................................... 7
9. HOW TO READ THE TOP MARKING........................................................................................ 7
10. PACKAGE DRAWING AND DIMENSIONS................................................................................ 8
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
Publication Release Date: May, 2006
- 1 - Revision 0.6
1. GENERAL DESCRIPTION
The W83176R-400 supports four current mode differential Clock pair’s buffer output companion
devices to CK409 or CK410 clock generator.
The W83176R-400 provides I2C serial bus interface to program the registers to enable or disable each
clock outputs. The W83176R-400 accepts a reference clock as its input current mode differential pair’s
clock.
2. PRODUCT FEATURES
Four current mode differential clock pairs clock outputs
Support zero delay buffer mode and normal buffer mode
Supports two hardware output enable/disable pin
Programmable PLL bandwidth
Low Skew outputs (< 50ps)
Low cycle to cycle jitter (<100ps)
I
2C 2-Wire serial interface and supports Byte or Block Data R/W
28-pin SSOP package
3. PIN CONFIGURATION
*: Internal pull-up resistor
120K to VDD
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
- 2 -
4. BLOCK DIAGRAM
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
Publication Release Date: May, 2006
- 3 - Revision 0.6
5. PIN DESCRIPTION
BUFFER TYPE SYMBOL DESCRIPTION
IN Input
OUT Output
INtp120k Latched input at power up, internal 120k pull up.
* Internal 120k pull-up
# Low Active
5.1 Clock Outputs
PIN PIN NAME TYPE DESCRIPTION
2,3 SRCT_IN
SRCC_IN IN SRC Differential clock input
6,9,20,23, DIFT (1,2,5,6) OUT True Clocks of differential pair outputs
7,10,19,22 DIFC (1,2,5,6) OUT Complement Clocks of differential pair outputs
8,21 OE (1,6)* IN
DIFT/C (1, 6) output control, 0=Tri-state, 1=Enable output,
This is internal 120K pull up.
13 SCLK * IN
Serial clock of I2C 2-wire control interface
Internal pull-up resistor 120K to VDD
14 SDATA * I/O
Serial data of I2C 2-wire control interface
Internal pull-up resistor 120K to VDD
15 PD#* IN
A
ctive low to power down the device into low power state
is stopped VCO and all output buffers, This is internal
120K pull up.
16 SRC_STOP#* IN
Active low to stop differential output buffers, This is internal
120K pull up.
17 HIGH_BW#* INtp120k Latched input at power up to selecting PLL Band Width
0=HIGH, 1=LOW, This is internal 120K pull up.
26   IREF OUT
Deciding the reference current for the Differential clock
pairs. The pin was connected to the precision resistor tied
to ground to decide the appropriate current; 475 ohm is the
standard value for 0.7V differential clock output.
5.2 Power Pins
PIN PIN NAME DESCRIPTION
4,25,27 GND Ground
1,5,11,18,24 VDD Power Supply 3.3V
28 VDDA Analog power supply, 3.3V
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
- 4 -
6. I2C CONTROL AND STATUS REGISTERS
6.1 Register 0: Control Register (Default: 07h)
BIT NAME PWD DESCRIPTION
7 PD_DM 0
PD# Drive mode, 0:driven, 1:Hi-Z
6 SRC_ST_DM 0
SRC_STOP Drive mode, 0:driven, 1:Hi-Z
5 SEL_SRCDIV 0
0:control by pin, 1:control by I2C
4 SEL_NORMAL 0
0:control by pin, 1:control by I2C
3 SEL_PLLBW 0
0:control by pin, 1:control by I2C
2 PLL_BW_ ADJ 1 0:High BW, 1:Low BW
1 NORMAL#/PLL 1 0:Normal buffer, 1:PLL mode
0 SRC_DIV# 1 0:Divided by 2 mode, 1:Normal (output=input)
6.2 Register 1: Control Register (Default: FFh)
BIT NAME PWD DESCRIPTION
7 Reserved 1
Reserved
6 DIF6_EN 1
0:Disabled (Hi-Z), 1:Enable
5 DIF5_EN 1
0:Disabled (Hi-Z), 1:Enable
4 Reserved 1
Reserved
3 Reserved 1
Reserved
2 DIF2_EN 1
0:Disabled (Hi-Z), 1:Enable
1 DIF1_EN 1
0:Disabled (Hi-Z), 1:Enable
0 Reserved 1 Reserved
6.3 Register 2: Control Register (Default: 00h)
BIT NAME PWD DESCRIPTION
7 Reserved 0 Reserved
6 DIF6STOP_EN 0 0:Free-run, 1:Stoppable
5 DIF5STOP_EN 0 0:Free-run, 1:Stoppable
4 Reserved 0
Reserved
3 Reserved 0 Reserved
2 DIF2STOP_EN 0 0:Free-run, 1:Stoppable
1 DIF1STOP_EN 0 0:Free-run, 1:Stoppable
0 Reserved 0
Reserved
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
Publication Release Date: May, 2006
- 5 - Revision 0.6
6.4 Register 3: Reserved Register (Default: 00h)
BIT NAME PWD DESCRIPTION
7 Reserved 0 Reserved
6 Reserved 0 Reserved
5 Reserved 0 Reserved
4 Reserved 0 Reserved
3 Reserved 0 Reserved
2 Reserved 0 Reserved
1 Reserved 0 Reserved
0 Reserved 0 Reserved
6.5 Register 4: Winbond Chip ID – Project Code Register (Default: 11h)
BIT NAME PWD DESCRIPTION
7 CHPI_ID [7] 0 Winbond Chip ID. W83176R-400 (SA5911).
6 CHPI_ID [6] 0 Winbond Chip ID.
5 CHPI_ID [5] 0 Winbond Chip ID.
4 CHPI_ID [4] 1 Winbond Chip ID.
3 CHPI_ID [3] 0 Winbond Chip ID.
2 CHPI_ID [2] 0 Winbond Chip ID.
1 CHPI_ID [1] 0 Winbond Chip ID.
0 CHPI_ID [0] 1 Winbond Chip ID.
6.6 Register 5: Test Register (Default: 00h)
BIT NAME PWD DESCRIPTION
7 TEST1 0 Reserved
6 TEST0 0 Reserved
5 Reserved 0 Reserved
4 Reserved 0 Reserved
3 Reserved 0 Reserved
2 Reserved 0 Reserved
1 Reserved 0 Reserved
0 Reserved 0 Reserved
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
- 6 -
7. ACCESS INTERFACE
The W83176R-400 provides I2C Serial Bus for microprocessor to read/write internal registers. In the
W83176R-400 is provided Block Read/Block Write and Byte-Data Read/Write protocol. The I2C write
address is defined at 0xDC. The I2C read address is defined at 0xDD.
7.1 Block Write protocol
7.2 Block Read protocol
## In block mode, the command code must filled ‘00h’
7.3 Byte Write protocol
7.4 Byte Read protocol
## In Byte Mode, the index No= (Register No) + 1
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
Publication Release Date: May, 2006
- 7 - Revision 0.6
8. ORDERING INFORMATION
PART NUMBER PACKAGE TYPE PRODUCTION FLOW
W83176R_400 28 PIN SSOP Commercial, 0°C to +70°C
W83176G-400 28 PIN SSOP
(Lead free package) Commercial, 0°C to +70°C
9. HOW TO READ THE TOP MARKING
1st line: Winbond logo and the type number:
Normal part: W83176R-400, Lead free part: W83176G-400
2nd line: Tracking code 2 8051234
2: wafers manufactured in Winbond FAB 2
8051234: wafer production series lot number
3rd line: Tracking code 418 G B SA
510: packages made in '2005, week 10
G: assembly house ID; O means OSE, G means GR
B: IC revision
SA: Winbond Internal use
All the trademarks of products and companies mentioned in this datasheet belong to their
respective owners.
W83176R-400
28051234
510GBSA
W83176G-400
28051234
510GBSA
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
- 8 -
10. PACKAGE DRAWING AND DIMENSIONS
28pin 209mil
1
2
D
E
e
Y
bA1
A2 A
SEATING PLANE
DTEAIL A
L
L1
θ
DETAIL A
SEATING PLANE
E
H
14
15
0
0.002
0.197
0.291
7.80
0
7.40
8
8.20
5.30
b
E
D
c
9.90
5.00
A1
A2
A
5.60
10.50
10.20
2.00
1.85
8
0.3230.307
0.073
0.079
0.220
0.389 0.4130.401
0.209
MIN.
DIMENSION IN INCH
SYMBOL
DIMENSION IN MM
MIN. NOM MAX. MAX.NOM
0.05
e
L
L1
Y
θ
0.009 0.015
0.004 0.010
0.021 0.030
0.050
0.004
0.22 0.38
0.09 0.25
0.65 0.0256
0.55 0.75
1.25
0.10
HE
0.95 0.037
1.75
1.65 0.065 0.069
W83176R-400/W83176G-400
CURRENT MODE DIFFERENTIAL BUFFER FOR PCI EXPRESS AND SATA
Publication Release Date: May, 2006
- 9 - Revision 0.6
Important Notice
Winbond products are not designed, intended, authorized or warranted for use as components
in systems or equipment intended for surgical implantation, atomic energy control
instruments, airplane or spaceship instruments, transportation instruments, traffic signal
instruments, combustion control instruments, or for other applications intended to support or
sustain life. Further more, Winbond products are not intended for applications wherein failure
of Winbond products could result or lead to a situation wherein personal injury, death or
severe property or environmental damage could occur.
Winbond customers using or selling these products for use in such applications do so at their
own risk and agree to fully indemnify Winbond for any damages resulting from such improper
use or sales.
Headquarters
No. 4, Creation Rd. III,
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Hsinchu, Taiwan
TEL: 886-3-5770066
FAX: 886-3-5665577
http://www.winbond.com.tw/
Taipei Office
TEL: 886-2-8177-7168
FAX: 886-2-8751-3579
Winbond Electronics Corporation America
2727 North First Street, San Jose,
CA 95134, U.S.A.
TEL: 1-408-9436666
FAX: 1-408-5441798
Winbond Electronics (H.K.) Ltd.
No. 378 Kwun Tong Rd.,
Kowloon, Hong Kong
FAX: 852-27552064
Unit 9-15, 22F, Millennium City,
TEL: 852-27513100
Please note that all data and specifications are subject to change without notice.
All the trademarks of products and companies mentioned in this datasheet belong to their respective owners.
Winbond Electronics (Shanghai) Ltd.
200336 China
FAX: 86-21-62365998
27F, 2299 Yan An W. Rd. Shanghai,
TEL: 86-21-62365999
Winbond Electronics Corporation Japan
Shinyokohama Kohoku-ku,
Yokohama, 222-0033
FAX: 81-45-4781800
7F Daini-ueno BLDG, 3-7-18
TEL: 81-45-4781881
9F, No.480, Rueiguang Rd.,
Neihu District, Taipei, 114,
Taiwan, R.O.C.