M36W432B datasheet(36/57 Pages) STMICROELECTRONICS

Part #	M36W432B

Description	32 Mbit 2Mb x16, Boot Block Flash Memory and 4 Mbit 256K x16 SRAM, Multiple Memory Product

PDF	57 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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36 / 57 page

M36W432T, M36W432B

36/57

Figure 20. SRAM Low VDDS Data Retention AC Waveforms, E1S Controlled

Figure 21. SRAM Low VDDS Data Retention AC Waveforms, E2S Controlled

Table 21. SRAM Low VDDS Data Retention Characteristic

Note: 1. All other Inputs VIH ≤ VDD –0.2V or VIL ≤ 0.2V.

2. Sampled only. Not 100% tested.

Symbol

Parameter

Test Condition

Min

Max

Unit

IDDDR

Supply Current (Data Retention)

VDDS = 3.3V, E1S ≥ VDDS – 0.2V,

E2S

≥ VDDS – 0.2V or E2S ≤ 0.2V

µA

VDR

Supply Voltage (Data Retention)

E1S

≥ VDDS – 0.2V, E2S ≤ 0.2V

1.5

3.3

tCDR

Chip Disable to Power Down

E1S

≥ VDDS – 0.2V, E2S ≤ 0.2V

0ns

Operation Recovery Time

tRC

AI05218

2.8 V

E1S

tCDR

E1S

≥ VDDS – 0.2V

1.5 V

VSSS

VDDS

DATA RETENTION MODE

VDR ≥ 1.5V

AI05219

2.8 V

E2S

tCDR

E2S

≤ 0.2V

1.5 V

VSSS

VDDS

DATA RETENTION MODE

0.4 V

VDR ≥ 1.5V

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