M48Z58Y-70MH6F STMicroelectronics, M48Z58Y-70MH6F Datasheet - Page 4

• Manufacturer Part Number: M48Z58Y-70MH6F
• Manufacturer: STMicroelectronics
• Type: NVSRAMr

Specifications of M48Z58Y-70MH6F

• Word Size: 8b
• Organization: 8Kx8
• Density: 64Kb
• Interface Type: Parallel
• Access Time (max): 70ns
• Operating Supply Voltage (typ): 5V
• Package Type: SOH
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Operating Temp Range: -40C to 85C
• Pin Count: 28
• Mounting: Surface Mount
• Supply Current: 50mA
• Lead Free Status / Rohs Status: Compliant

M48Z58, M48Z58Y
DESCRIPTION
The M48Z58/Y ZEROPOWER
non-volatile static RAM that integrates power-fail
deselect circuitry and battery control logic on a sin-
gle die. The monolithic chip is available in two spe-
cial packages to provide a highly integrated
battery backed-up memory solution.
The M48Z58/Y is a non-volatile pin and function
equivalent to any JEDEC standard 8K x 8 SRAM.
It also easily fits into many ROM, EPROM, and
EEPROM sockets, providing the non-volatility of
PROMs without any requirement for special
WRITE timing or limitations on the number of
WRITEs that can be performed.
The 28-pin, 600mil DIP CAPHAT™ houses the
M48Z58/Y silicon with a long life lithium button cell
in a single package.
Figure 3. Logic Diagram
4/20
A0-A12
W
G
E
13
V CC
V SS
M48Z58Y
M48Z58
®
RAM is an 8K x 8
8
DQ0-DQ7
AI01176B
The 28-pin, 330mil SOIC provides sockets with
gold plated contacts at both ends for direct con-
nection to a separate SNAPHAT
taining the battery. The unique design allows the
SNAPHAT battery package to be mounted on top
of the SOIC package after the completion of the
surface mount process. Insertion of the SNAPHAT
housing after reflow prevents potential battery
damage due to the high temperatures required for
device surface-mounting. The SNAPHAT housing
is keyed to prevent reverse insertion.
The SOIC and battery packages are shipped sep-
arately in plastic anti-static tubes or in Tape & Reel
form.
For the 28-lead SOIC, the battery package (e.g.,
SNAPHAT) part number is “M4Z28-BR00SH” (see
Table 16., page
Table 1. Signal Names
DQ0-DQ7
A0-A12
V
V
NC
W
G
E
CC
SS
18).
Address Inputs
Data Inputs / Outputs
Chip Enable Input
Output Enable Input
WRITE Enable Input
Supply Voltage
Ground
Not Connected Internally
®
housing con-