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M48Z35Y-70MH1F

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24
List of figures M48Z35, M48Z35Y
4/24 Doc ID 2608 Rev 10
List of figures
Figure 1. Logic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. DIP connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. SOIC connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 5. READ mode AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 6. WRITE enable controlled, WRITE AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 7. Chip enable controlled, WRITE AC waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 8. Power down/up mode AC waveforms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 9. Supply voltage protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 10. AC measurement load circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 11. PCDIP28 – 28-pin plastic DIP, battery CAPHAT™, package outline . . . . . . . . . . . . . . . . . 17
Figure 12. SOH28 – 28-lead plastic small outline, battery SNAPHAT
®
, pack. outline. . . . . . . . . . . . . 18
Figure 13. SH – 4-pin SNAPHAT
®
housing for 48 mAh battery, package outline . . . . . . . . . . . . . . . . 19
Figure 14. SH – 4-pin SNAPHAT
®
housing for 120 mAh battery, package outline . . . . . . . . . . . . . . . 20
Figure 15. Recycling symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
M48Z35, M48Z35Y Description
Doc ID 2608 Rev 10 5/24
1 Description
The M48Z35/Y ZEROPOWER
®
RAM is a 32 K x 8, non-volatile static RAM that integrates
power-fail deselect circuitry and battery control logic on a single die. The monolithic chip is
available in two special packages to provide a highly integrated battery-backed memory
solution.
The M48Z35/Y is a non-volatile pin and function equivalent to any JEDEC standard 32 K 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 600 mil DIP CAPHAT
™
houses
the M48Z35/Y silicon with a long life lithium button cell in a single package.
The 28-pin 330 mil SOIC provides sockets with gold plated contacts at both ends for direct
connection to a separate SNAPHAT
®
housing containing 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 separately in plastic anti-static tubes or in tape
& reel form.
For the 28-lead SOIC, the battery package (i.e. SNAPHAT) part number is “M4Z28-
BR00SH1.”
Figure 1. Logic diagram
AI01616D
15
A0-A14
W
DQ0-DQ7
V
CC
M48Z35
M48Z35Y
G
V
SS
8
E
Description M48Z35, M48Z35Y
6/24 Doc ID 2608 Rev 10
Table 1. Signal names
Figure 2. DIP connections
Figure 3. SOIC connections
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
A1
A0
DQ0
A7
A4
A3
A2
A6
A5
A13
A10
A8
A9
DQ7
W
A11
G
E
DQ5DQ1
DQ2
DQ3V
SS
DQ4
DQ6
A12
A14 V
CC
AI01617D
M48Z35
M48Z35Y
8
1
2
3
4
5
6
7
9
10
11
12
13
14
16
15
28
27
26
25
24
23
22
21
20
19
18
17
AI02303C
8
2
3
4
5
6
7
9
10
11
12
13
14
22
21
20
19
18
17
16
15
28
27
26
25
24
23
1
A1
A0
DQ0
A7
A4
A3
A2
A6
A5
A13
A10
A8
A9
DQ7
W
A11
G
E
DQ5DQ1
DQ2
DQ3V
SS
DQ4
DQ6
A12
A14 V
CC
M48Z35Y
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24

M48Z35Y-70MH1F

Mfr. #:
Buy M48Z35Y-70MH1F
Manufacturer:
STMicroelectronics
Description:
NVRAM 256K (32Kx8) 70ns
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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