M48Z32V datasheet(15/19 Pages) STMICROELECTRONICS

tên linh kiện	M48Z32V

Giải thích chi tiết về linh kiện	3.3V, 256Kbit (32Kbit x 8) ZEROPOWER SRAM

PDF	19 Pages

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nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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15 / 19 page

M48Z32V

DC and AC parameters

15/19

Table 11.

Power down/up AC characteristics

Table 12.

Power down/up trip points DC characteristics

Symbol

Parameter(1)

Valid for ambient operating temperature: TA = 0 to 70°C; VCC = 3.0 to 3.6V (except where noted).

Min

Max

Unit

tPD

E or W at VIH before power down

µs

(2)

VPFD (max) to VPFD (min) fall time of less than tF may result in deselection/write protection not occurring

until 200µs after VCC passes VPFD (min).

VPFD (max) to VPFD (min) VCC fall time

300

µs

tFB

(3)

VPFD (min) to VSS fall time of less than tFB may cause corruption of RAM data.

VPFD (min) to VSS VCC fall time

µs

VPFD (min) to VPFD (max) VCC rise time

µs

tRB

VSS to VPFD (min) VCC rise time

µs

tREC

(4)

tREC (min) = 20ms for industrial temperature Grade (6) device.

VPFD (max) to inputs recognized

200

Symbol

Parameter(1)(2)

All voltages referenced to VSS.

Valid for ambient operating temperature: TA = 0 to 70°C or –40 to 85°C; VCC = 3.0 to 3.6V (except where

noted).

Min

Typ

Max

Unit

VPFD

Power-fail deselect voltage

2.7

2.85

3.0

VSO

Battery back-up switchover voltage

VPFD – 100mV

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