M48Z02-200PC1 STMicroelectronics, M48Z02-200PC1 Datasheet - Page 11

• Manufacturer Part Number: M48Z02-200PC1
• Description: IC NVSRAM 16KBIT 200NS 24DIP
• Manufacturer: STMicroelectronics

Specifications of M48Z02-200PC1

• Format - Memory: RAM
• Memory Type: NVSRAM (Non-Volatile SRAM)
• Memory Size: 16K (2K x 8)
• Speed: 200ns
• Interface: Parallel
• Voltage - Supply: 4.75 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 24-DIP (600 mil) Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2867-5

M48Z02, M48Z12
Operation modes
Figure 7.
Checking the BOK flag status
POWER-UP
READ DATA
AT ANY ADDRESS
WRITE DATA
COMPLEMENT BACK
TO SAME ADDRESS
READ DATA
AT SAME
ADDRESS AGAIN
IS DATA
NO
(BATTERY LOW)
COMPLEMENT
OF FIRST
READ?
NOTIFY SYSTEM
(BATTERY OK)
YES
OF LOW BATTERY
(DATA MAY BE
CORRUPTED)
WRITE ORIGINAL
DATA BACK TO
SAME ADDRESS
CONTINUE
AI00607
Doc ID 2420 Rev 8
11/22