M28C64 Datasheet, PDF (1/24 Pages) STMicroelectronics – 64 Kbit 8K x 8 Parallel EEPROM With Software Data Protection

M28C64
64 Kbit (8K x 8) Parallel EEPROM
With Software Data Protection
s Fast Access Time:
– 90 ns at V_CC=5 V for M28C64 and M28C64-A
– 120 ns at V_CC=3 V for M28C64-xxW
s Single Supply Voltage:
– 4.5 V to 5.5 V for M28C64 and M28C64-A
– 2.7 V to 3.6 V for M28C64-xxW
s Low Power Consumption
s Fast BYTE and PAGE WRITE (up to 64 Bytes)
– 1 ms at V_CC=4.5 V for M28C64-A
– 3 ms at V_CC=4.5 V for M28C64
– 5 ms at V_CC=2.7 V for M28C64-xxW
s Enhanced Write Detection and Monitoring:
– Ready/Busy Open Drain Output
– Data Polling
– Toggle Bit
– Page Load Timer Status
s JEDEC Approved Bytewide Pin-Out
s Software Data Protection
s 100000 Erase/Write Cycles (minimum)
s Data Retention (minimum):
– 40 Years for M28C64 and M28C64-xxW
– 10 Years for M28C64-A
Table 1. Signal Names
A0-A12
Address Input
DQ0-DQ7
Data Input / Output
W
Write Enable
E
Chip Enable
G
Output Enable
RB
Ready / Busy
V_CC
Supply Voltage
V_SS
Ground
28
1
PDIP28 (BS)
PLCC32 (KA)
28
1
SO28 (MS)
300 mil width
TSOP28 (NS)
8 x 13.4 mm
Figure 1. Logic Diagram
VCC
13
A0-A12
8
DQ0-DQ7
W
M28C64
E
RB
G
VSS
AI01350C
June 2000
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