SA9203
SA9203 is 6/3 X 8 PORT EXPANDER manufactured by Sames.
sames
Features n
SA9203/5 6/3 X 8 PORT EXPANDER
Six (SA9203) or three (SA9205) 8-Bit I/O Ports Each bit of one port independently programmable as input or output Five (SA9203) or two (SA9205) remaining ports can be individually configured as input or output. (Direction applicable to all 8 pins of each port.) One 8-Bit port programmable as either atched or transparent inputs Supports byte-wide and bit-wide I/O port addressing modes on all ports n
Readback of all control and port registers Interfaces directly with multiplexed address and data bus microprocessors/ microcontrollers Internal address latch Single +5V power supply Low power CMOS pletely static operation TTL-level patibility n n n n n n n n n n
FIGURE 1: PIN CONNECTION FOR DESCRIPTION The SAMES SA9203/5 Port Expander is a SA9203 CMOS device suited to microprocessor based applications requiring input/output port expansion. The device interfaces very 9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 simply to any microcontroller/micro60 PA 0 10 59 processor with a multiplexed address/data PA 1 11 58 PA 12 2 57 bus structure. PA 3 13 56 PA 4 14 55 The SA9203 includes 8 independently PA 5 15 54 PA 6 16 53 programmable I/O pins for Port A and Port PA 7 17 52 SA9203 V DD 18 B to F (5 ports) independently programmable 51 PB 0 19 50 PB 1 20 as I/O. It is packaged in a PCB efficient 68 49 PB 2 21 48 pin PLCC package. The SA9205 includes PB 3 22 47 PB 4 23 46 8 independently programmable I/O pins for PB 5 24 45 PB 6 25 44 Port A with Port B and Port C as indepen PB 7 26 dently programmable I/O, packaged in a 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 cost effective 44 pin PLCC package.
STB RST INT WR RD ALE CS A8 V SS AD 7 AD 6 AD 5 AD 4 AD 3 AD 2 AD 1 AD 0 PC 4 PC 5 PC 6 PC 7 V SS PD 0 PD 1 PD 2 PD 3 PD 4 PD 5 PD 6 PD 7
DR-01266
PF 7 PF 6 PF 5 PF 4 PF 3 PF 2 PF 1 PF 0 V DD PE 7 PE 6 PE 5 PE 4 PE 3 PE 2 PE 1 PE 0
PC 0 PC 1 PC 2 PC 3
1/14
4491 PDS039-SA9203/5-001 REV. A 20-08-96
SA9203/5 FIGURE...
