ST95P08

8 Kbit Serial SPI EEPROM with Positive Clock Strobe

February 1999

1/16

1 MILLION ERASE/WRITE CYCLES

40 YEARS DATA RETENTION

SINGLE 3V to 5.5V SUPPLY VOLTAGE

SPI BUS COMPATIBLE SERIAL INTERFACE

2 MHz CLOCK RATE MAX

BLOCK WRITE PROTECTION

STATUS REGISTER

16 BYTE PAGE MODE

WRITE PROTECT

SELF-TIMED PROGRAMMING CYCLE

E.S.D.PROTECTION GREATER than 4000V

SUPPORTS POSITIVE CLOCK SPI MODES

DESCRIPTION

The ST95P08 is an 8 Kbit Electrically Erasable

Programmable Memory (EEPROM) fabricated with

STMicroelectronics’s High Endurance Single

Polysilicon CMOS technology. The 8 Kbit memory

is organised as 64 pages of 16 bytes. The memory

is accessed by a simple SPI bus compatible serial

interface. The bus signals are a serial clock input

(C), a serial data input (D) and a serial data output

(Q). The device connected to the bus is selected

when the chip select input (S) goes low. Commu-

nications with the chip can be interrupted with a

hold input (HOLD). The write operation is disabled

by a write protect input (W).

AI01315

S

VCC

ST95P08

HOLD

VSS

W

Q

C

D

Figure 1. Logic Diagram

C

Serial Clock

D

Serial Data Input

Q

Serial Data Output

S

Chip Select

W

Write Protect

HOLD

Hold

Supply Voltage

Ground

Table 1. Signal Names

8

1

SO8 (M)

150mil Width

8

1

PSDIP8 (B)

0.25mm Frame