BQ2205LY datasheet(5/10 Pages) TI

Part #	BQ2205LY

Description	POWER MONITORING AND SWITCHING CONTROLLER FOR 3.3V SRAM

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Manufacturer	TI [Texas Instruments]

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bq2205LY

SLUS581 − FEBRUARY 2004

5

www.ti.com

TERMINAL FUNCTIONS

NAME

TERMINAL

I/O

DESCRIPTION

NAME

bq2205LY

I/O

DESCRIPTION

A

1

I

SRAM bank select input

BCP

9

I

Backup supply input

BW

15

O

Battery warning output (open-drain)

CE

11

I

Chip enable input (active low)

CECON1

10

O

Conditioned chip enable output 1

CECON2

14

O

Conditioned chip enable output 2

N/C

2, 3, 6, 7

−

No connect. These pins must be left floating.

RST

16

O

Power-up reset to system CPU output (open-drain)

VCC

12

I

Main supply input

VOUT

13

O

SRAM supply output

VSS

4, 5, 8

−

Ground input

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

A

N/C

VSS

N/C

VSS

RST

BW

CECON2

VOUT

VCC

CE

CECON1

BCP

PW PACKAGE

(TOP VIEW)

N/C no connection

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