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M48Z32V датащи(PDF) 12 Page - STMicroelectronics

номер детали M48Z32V
подробное описание детали  3.3V, 256 Kbit 32 Kbit x 8 ZEROPOWER SRAM
PDF  16 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M48Z32V датащи(HTML) 12 Page - STMicroelectronics

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Figure 10. Power Down/Up Mode AC Waveforms
Table 9. Power Down/Up AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = 0 to 70°C or –40 to 85°C; VCC = 3.0 to 3.6V (except where noted).
2. VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring until 200µs after VCC pass-
es VPFD (min).
3. VPFD (min) to VSS fall time of less than tFB may cause corruption of RAM data.
4. tREC (min) = 20ms for industrial temperature Grade (6) device.
Table 10. Power Down/Up Trip Points DC Characteristics
Note: 1. All voltages referenced to VSS.
2. Valid for Ambient Operating Temperature: TA = 0 to 70°C or –40 to 85°C; VCC = 3.0 to 3.6V (except where noted).
Symbol
Parameter(1)
Min
Max
Unit
tPD
E or W at VIH before Power Down
0µs
tF
(2)
VPFD (max) to VPFD (min) VCC Fall Time
300
µs
tFB
(3)
VPFD (min) to VSS VCC Fall Time
10
µs
tR
VPFD (min) to VPFD (max) VCC Rise Time
10
µs
tRB
VSS to VPFD (min) VCC Rise Time
1µs
tREC
(4)
VPFD (max) to Inputs Recognized
40
200
ms
Symbol
Parameter(1,2)
Min
Typ
Max
Unit
VPFD
Power-fail Deselect Voltage
2.7
2.85
3.0
V
VSO
Battery Back-up Switchover Voltage
VPFD – 100mV
V
AI01168C
VCC
INPUTS
(PER CONTROL INPUT)
OUTPUTS
DON'T CARE
HIGH-Z
tF
tFB
tR
tPD
tRB
tDR
VALID
VALID
(PER CONTROL INPUT)
RECOGNIZED
RECOGNIZED
VPFD (max)
VPFD (min)
VSO
tREC



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