SA9203 Datasheet, PDF (1/14 Pages) Sames – 6/3 X 8 PORT EXPANDER

sames
SA9203/5
6/3 X 8 PORT EXPANDER
FEATURES
n Six (SA9203) or three (SA9205) 8-Bit n Readback of all control and port
I/O Ports
registers
n Each bit of one port independently n Interfaces directly with multiplexed
programmable as input or output
address and data bus microprocessors/
n Five (SA9203) or two (SA9205)
microcontrollers
remaining ports can be individually ^{n Internal address latch}
configured as input or output. (Direction _{n Single +5V power supply}
applicable to all 8 pins of each port.)
n Low power CMOS
n One 8-Bit port programmable as either
atched or transparent inputs
n Completely static operation
n Supports byte-wide and bit-wide I/O ^{n TTL-level compatibility}
port addressing modes on all ports
DESCRIPTION
The SAMES SA9203/5 Port Expander is a
CMOS device suited to microprocessor
based applications requiring input/output
port expansion. The device interfaces very
simply to any microcontroller/micro-
processor with a multiplexed address/data
bus structure.
The SA9203 includes 8 independently
programmable I/O pins for Port A and Port
B to F (5 ports) independently programmable
as I/O. It is packaged in a PCB efficient 68
pin PLCC package. The SA9205 includes
8 independently programmable I/O pins for
Port A with Port B and Port C as indepen-
dently programmable I/O, packaged in a
cost effective 44 pin PLCC package.
FIGURE 1: PIN CONNECTION FOR
SA9203
PA 0 10
PA 1 11
PA 2 12
PA 3 ₁₃
PA 4 14
PA 5 ₁₅
PA 6 ₁₆
PA _{7 17}
VDD ₁₈
PB0 19
PB ₁ 20
PB2 21
PB3 22
PB4 23
PB5 ₂₄
PB6 25
PB7 26
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
SA9203
60 ^PF 7
59 PF 6
58 ^PF 5
57 PF 4
56 PF 3
55 PF 2
54 PF 1
53 PF 0
52 ^V DD
51 ^PE 7
50 PE 6
49 PE 5
48 PE 4
47 PE 3
46 ^PE 2
45 PE 1
44 PE 0
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
DR-01266
4491
PDS039-SA9203/5-001
REV. A
1/14
20-08-96