ADP3500

REV.PrP 2/6/02

- 9 -

PIN CONFIGURATION

OPT3

INT-

KEYPADCOL0

KEYPADROW0

RSTDELAY-

REFO

LDO1 (Baseband VDD)

LDO2 (Baseband AVDD)

LDO3 (RTC/Coin-cell)

LDO11 (Option)

LDO4 (Audio)

LDO6 (Baseband Core)

LDO5 (Vibrator)

LDO7 (RF Rx1)

VBAT

BLIGHT

TCXO_ON

DGND

SLEEP-

KEYPADCOL1

KEYPADCOL2

KEYPADCOL3

KEYPADROW1

KEYPADROW2

KEYPADROW3

KEYPADROW4

KEYPADROW5

AGND

VBAT

VBAT

VBAT

VBAT

64

49

48

1

33

32

17

16

Figure 2. Pin Configuration

PIN DESCRIPTION

Pin Mnemonic

I/O

Supply

Function

1

OPT3

I

VBAT

Optional Power ON input. ADP3500 will keep “power ON” during this pin goes “High”.

2

KEYPADCOL0

O

LDO1

Keypad Column Strobe 0 (Open Drain, pull low)

3

KEYPADCOL1

O

LDO1

Keypad Column Strobe 1 (Open Drain, pull low)

4

KEYPADCOL2

O

LDO1

Keypad Column Strobe 2 (Open Drain, pull low)

5

KEYPADCOL3

O

LDO1

Keypad Column Strobe 3 (Open Drain, pull low)

6

KEYPADROW0

I

LDO1

Keypad Row Input 0. Pulled up internally, 10K

Ω

7

KEYPADROW1

I

LDO1

Keypad Row Input 1. Pulled up internally, 10K

Ω

8

KEYPADROW2

I

LDO1

Keypad Row Input 2. Pulled up internally, 10K

Ω

9

KEYPADROW3

I

LDO1

Keypad Row Input 3. Pulled up internally, 10K

Ω

10

KEYPADROW4

I

LDO1

Keypad Row Input 4. Pulled up internally, 10K

Ω

11

KEYPADROW5

I

LDO1

Keypad Row Input 5. Pulled up internally, 10K

Ω

12

TCXO_ON

I

LDO1

Logic input pin for Main LDOs (LDO1, LDO2, LDO3, LDO6) turning on control. L: OFF, H:

ON

13

SLEEP-

I

LDO1

Logic input pin for RF Rx LDOs (LDO7 and LDO9). Gating register data with this input for

these LDOs. LDO7 and LDO9 are turned OFF when SLEEP- goes Low even if the registers

set to ON.

14

BLIGHT

O

VBAT

LED drive. Open drain output.

15

DGND

-

-

Digital Ground

16

INT-

O

LDO1

Interrupt signal output

17

RTCV

-

-

Supply input for RTC, 32KHz OSC, and some other logics. Connects to Coin cell battery in

typical operation.

18

OSCOUT

-

RTCV

Connect to 32.768KHz crystal.

19

AGND

-

-

Analog Ground

20

OSCIN

-

RTCV

Connect to 32.768KHz crystal.

21

GPIO0

I/O

LDO1

General Purpose Input and Output port. Integrated Interrupt function. Interrupt occurs both

falling and raising edge.

22

GPIO1

I/O

LDO1

General Purpose Input and Output port. Integrated Interrupt function. Interrupt occurs both

falling and raising edge.

23

GPIO2

I/O

LDO1

General Purpose Input and Output port. Integrated Interrupt function. Interrupt occurs both

falling and raising edge.

24

GPIO3

I/O

LDO1

General Purpose Input and Output port. Integrated Interrupt function. Interrupt occurs both

falling and raising edge.

25

DATA

I/O

LDO1

Serial Interface data input and output.

26

CS

I

LDO1

Serial Interface Chip Select input. Active High input.

27

CLKIN

I

LDO1

Serial Interface Clock input.

28

RESETIN-

I

LDO1

Reset input signal for internal reset signal and starts Stay-Alive timer.

29

32KOUT

O

RTCV

32.768KHz output. Output after 30mS when Reset is released.

PRELIMINARY TECHNICAL DATA