M48Z32V Datasheet, PDF (1/16 Pages) STMicroelectronics – 3.3V, 256 Kbit 32 Kbit x 8 ZEROPOWER SRAM

M48Z32V
3.3V, 256 Kbit (32 Kbit x8) ZEROPOWER^® SRAM
FEATURES SUMMARY
■ INTEGRATED, ULTRA LOW POWER SRAM,
AND POWER-FAIL CONTROL CIRCUIT
■ READ CYCLE TIME EQUALS WRITE CYCLE
TIME
■ AUTOMATIC POWER-FAIL CHIP
DESELECT AND WRITE PROTECTION
■ WRITE PROTECT VOLTAGES:
(V_PFD = Power-fail Deselect Voltage)
– M48Z32V: 2.7V ≤ V_PFD ≤ 3.0V
■ ULTRA-LOW STANDBY CURRENT
Figure 1. Logic Diagram
VCC B +
15
A0-A14
8
DQ0-DQ7
W
M48Z32V
E
G
VSS
AI04787
Figure 2. Package
44
1
SOH44 (MT)
44-pin, Hatless SOIC
Table 1. Signal Names
A0-A14
Address Inputs
DQ0-DQ7
Data Inputs / Outputs
E
Chip Enable Input
G
Output Enable Input
W
WRITE Enable Input
V_CC
Supply Voltage
V_SS
Ground
B+
Positive Battery Pin
NC
Not Connected
March 2004
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