IS37/38SML01G1
Integrated Silicon Solution, Inc.- www.issi.com 4
Rev. 0A
06/16/2017
TABLE OF CONTENTS
FEATURES ............................................................................................................................................................ 2
GENERAL DESCRIPTION .................................................................................................................................... 3
TABLE OF CONTENTS ......................................................................................................................................... 4
1. PIN CONFIGURATION ................................................................................................................................... 6
2. PIN DESCRIPTIONS ...................................................................................................................................... 7
3. BLOCK DIAGRAM .......................................................................................................................................... 8
4. Command Set ................................................................................................................................................. 9
5. ELECTRICAL CHARACTERISTICS ............................................................................................................. 10
5.1 ABSOLUTE MAXIMUM RATINGS (1) ..................................................................................................... 10
5.2 Recommended Operating Conditions .................................................................................................... 10
5.3 DC CHARACTERISTICs ........................................................................................................................ 11
5.4 Valid Block .............................................................................................................................................. 11
5.5 AC Measurement Condition .................................................................................................................... 12
5.6 AC PIN CAPACITANCE (TA = 25°C, VCC=3.3V, 1MHz) ...................................................................... 12
5.7 READ/PROGRAM/ERASE PERFORMANCne ...................................................................................... 12
5.8 General Timing Characteristics .............................................................................................................. 13
6. Operations and Timing Diagrams ................................................................................................................. 14
6.1 Read Operations and Serial Output........................................................................................................ 14
6.2 Program Operations and Serial Input ..................................................................................................... 17
6.3 Internal Data Move.................................................................................................................................. 23
6.4 Erase Operation ...................................................................................................................................... 23
6.5 Read ID ................................................................................................................................................... 25
6.6 WP# Timing ............................................................................................................................................ 26
6.7 HOLD# Timing ........................................................................................................................................ 27
6.8 Power-Up ................................................................................................................................................ 28
7. BUS/FEATURE OPERATION AND ERROR MANAGEMENT ..................................................................... 29
7.1 BUS Operation ..................................................................................................................................... 29
7.2 Feature Operations .............................................................................................................................. 30
7.3 Array Write Enable / Disable ................................................................................................................ 32
7.4 Status Register .................................................................................................................................... 33
7.5 Error Management ............................................................................................................................... 34
7.5.1 Mask Out Initial Invalid Blocks ............................................................................................................. 34
7.5.2 Identifying Initial Invalid BlockS ........................................................................................................... 34
7.5.3 Block Replacement .............................................................................................................................. 36
7.5.4 ECC Protection .................................................................................................................................... 37
7.6 Addressing for Programming Operation .............................................................................................. 38
8. PACKAGE TYPE INFORMATION ................................................................................................................ 39
8.1 16-LEAD PLASTIC SMALL OUTLINE PACKAGE (300 MILS BODY WIDTH) (M) ............................. 39