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Details, datasheet, quote on part number:SA9203
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Datasheet text preview:
sames
FEATURES
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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 F i v e (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
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R e a d b a c k 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 Completely static operation TTL-level compatibility
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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 s i m p l y to any microcontroller/micro60 PA 0 1 0 59 processor with a multiplexed address/data PA 1 1 1 58 PA 2 1 2 57 bus structure. PA 3 1 3 56 PA 4 1 4 55 The SA9203 includes 8 independently PA 5 1 5 54 PA 6 1 6 53 programmable I/O pins for Port A and Port PA 7 1 7 52 SA9203 V D D 18 B to F (5 ports) independently programmable 51 P B 0 19 50 P B 1 20 as I/O. It is packaged in a PCB efficient 68 49 P B 2 21 48 pin PLCC package. The SA9205 includes P B 3 22 47 P B 4 23 46 8 independently programmable I/O pins for P B 5 24 45 P B 6 25 44 Port A with Port B and Port C as indepenP B 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 AD6 AD 5 AD 4 AD3 AD 2 AD 1 AD 0
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
PC0 PC 1 PC 2 PC 3 PC4 PC5 PC6 PC 7 V SS PD 0 PD 1 PD 2 PD3 PD4 PD 5 PD6 PD7
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4491 PDS039-SA9203/5-001 REV. A 20-08-96
SA9203/5 FIGURE 2: BLOCK DIAGRAM FOR SA9203 STB ALE CS RD WR RST INT P Inter face
µ
POR A POR B POR C POR D POR E POR F
PA(7: PB(7: PC(7: PD(7: PE(7: PF(7:
CON PRTA CON PRTB
AD(7:0
DR-01267
FIGURE 3: PIN CONNECTION FOR SA9205
AD 7 AD6 AD 5 VSS AD 4 AD 1
41
6
5
4
3
2
1
44
AD3
NC
CS
43
AD2
42
AD0
40
ALE RD WR INT RST V DD STB PA 0 PA 1 PA 2 PA 3
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
39 38 37 36 35
PC7 PC6 PC 5 PC 4 PC 3 V DD PC 2 PC1 PC 0 PB 7 PB6
SA9205
34 33 32 31 30 29
PB 1 PB 2
PA7 PB 0
VSS
PA 4 PA 5
PB 3
DR-01268
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PB 4
PB 5
P A6
SA9203/5 FIGURE 4: BLOCK DIAGRAM FOR SA9205
STB ALE CS RD WR RST INT µP Interface CON PRTA PORT C PC(7:0) PORT B PB(7:0) PORT A PA(7:0)
AD(7:0)
CON. PRTBC
DR-01269
ABSOLUTE MAXIMUM RATINGS* (All voltages are with respect to VSS) Parameter Supply Voltage Voltage on any pin Current at any pin Storage Temperature Operating Temperature Symbol VDD-VSS VM IM TSTG TO Min VSS VSS-0.3 -40 0 Max 7,0 V DD+0.3 100 +125 +70 Unit V V mA °C °C
* Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only. Functional operation of the device at these or any other condition above those indicated in the operational sections of this specification, is not implied. Exposure to Absolute Maximum Ratings for extended periods may affect device reliability. sames
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