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M440T513Y 数据表(PDF) 21 Page - STMicroelectronics

部件名 M440T513Y
功能描述  5.0V, 16 Mbit (512 Kbit x 32) TIMEKEEPER-R SRAM
PDF  26 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M440T513Y 数据表(HTML) 21 Page - STMicroelectronics

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M440T513Y
Table 13. Power Down/Up AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = –15 to 75°C; VCC = 4.5 to 5.5V (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.
Symbol
Parameter(1)
Min
Max
Unit
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
Power-up Deselect Time
40
200
ms



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