PT8300_10 Datasheet, PDF (3/19 Pages) Princeton Technology Corp – 16-Bit I/O Expander IC

16-Bit I/O Expander IC
PIN CONFIGURATION
VSS
1
/RESET 2
CLK
3
LATCH 4
P15 5
P14 6
P13 7
P12 8
P11 9
P10 10
P9 11
P8 12
LATCHO 13
CLKO 14
PT8300
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URL: http://www.princeton.com.tw
PT8300
28 VDD
27 PULLUP
26 DI1
25 DO2
24 P0
23 P1
22 P2
21 P3
20 P4
19 P5
18 P6
17 P7
16 DI2
15 DO1
PIN DESCRIPTION
Pin Name
VSS
/RESET
CLK
LATCH
P15 ~ P8
LATCHO
CLKO
DO1, DO2
DI1, DI2
P7 ~ P0
PULLUP
VDD
I/O
Description
Pin No.
- Ground
1
I Reset pin (Active: Low)
2
I Clock input pin
3
I Latch input pin
4
I/O Parallel data input/output pins
5 ~ 12
O Latch output pin
13
O Clock output pin
14
O Serial data output pins
15, 25
I Serial data input pins
26, 16
O Parallel data output pins
17 ~ 24
P8 to P15 control pin for internal resistor
When P8 to P15 are in the output state, the PULLUP pin must be
I connected to VDD.
27
When P8 to P15 are in the input state, the PULLUP pin must be
connected to VSS.
-
28
PT8300 V1.8
-3-
February, 2006