PT8A263 Datasheet, PDF (2/11 Pages) Pericom Semiconductor Corporation – PIR Alarm Controller

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Pin Configuration
PT8A263
PIR Alarm Controller
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GND ₁
LED 2
OSC ₃
OUT1 4
OUT2 ₅
SEL1 6
SEL2 7
VCC 8
PT8A263
16 ^OP2O
15 ^OP2N
14 ^OP2P
13 ^OP1O
12 _OP1N
11 OP1P
10 _RST
9 VEE
Pin Description
Name Pin No.
GND
1
LED
2
OSC
3
OUT1,
OUT2
4, 5
SEL1,
SEL2
6, 7
VCC
8
VEE
9
RST
10
OP1P
11
OP1N
12
OP1O
13
OP2P
14
OP3N
15
OP2O
16
Type
Ground
O
I
O
Description
Ground
LED output: indicates PIR trigger signal. It is an active high signal with 125Hz
pulse in normal mode.
Input of oscillator: external resistor or capacitor changeable, resistor pull up,
capacitor pull down, 16kHz for normal application
Outputs to drive external devices
O
Power
O
I
I
I
O
I
I
O
Operating mode selection
Power supply
Internal voltage regulator output: 3.6V with respect to ground. Connected to the
drain of PIR sensor
Chip reset input: active low, kept floating or connected an RC network
Non-inverted input of first operational amplifier: connected directly to source of
PIR sensor
Inverted input of first operational amplifier
Output of first operational amplifier
Non-inverted input of second operational amplifier, 1.8V internally, 2.2uF
capacitor pull down
Inverted input of second operational amplifier
Output of second operational amplifier
12-07-0006
PT0084-6
07/06/12/12
2