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Home›Integrated Circuits (Through-hole)›Special Purpose ICs›UM6532 RAM I/O Timer IC 5V 40mA DIP-40
UM6532

UM6532 RAM I/O Timer IC 5V 40mA DIP-40

The UM6532 is a RAM-I/O-Timer integrated circuit commonly used as a support chip for microprocessor systems, providing memory, I/O ports, and timing functions.

250.00 EGP

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SKU:3496300143214
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UM6532 RAM I/O Timer IC 5V 40mA DIP-40

The UM6532 RAM I/O Timer IC is a multifunction integrated circuit designed to provide essential peripheral support for early microprocessor-based systems. Known as a RIOT (RAM, Input/Output, Timer) chip, it integrates static RAM memory, programmable input/output ports, and a programmable timer within a single DIP-40 package. This combination allows designers to reduce the number of external components required in microcontroller and microprocessor circuits.

The UM6532 is widely used in vintage computing systems and embedded control applications where compact system architecture and efficient resource integration are required. With built-in memory and programmable I/O lines, the device can directly interface with sensors, switches, displays, and other digital peripherals while the internal timer provides precise timing and interrupt control for system operations.

Features:
  • Integrated RAM, I/O ports, and timer in a single IC.
  • Static RAM memory for data storage.
  • Two programmable parallel I/O ports.
  • Built-in programmable timer.
  • Compatible with early microprocessor systems.
  • Reduces external component count in embedded designs.
  • Standard DIP-40 through-hole package for easy PCB mounting.
Specifications:
Parameter Value
IC Type RAM I/O Timer (RIOT)
RAM Capacity 128 Bytes
I/O Ports 2 × 8-bit Parallel Ports
Timer Type Programmable Timer
Supply Voltage 5V
Supply Current 40mA
Technology NMOS
Package Type DIP-40
Operating Temperature 0°C to +70°C
Pinout:
Pin Symbol Description Pin Symbol Description
1 Vss Ground 40 A6 Address Input
2 A5 Address Input 39 phi 2 Phase 2 Clock Input
3 A4 Address Input 38 CS1 Chip Select 1 (High)
4 A3 Address Input 37 CS2 Chip Select 2 (Low)
5 A2 Address Input 36 RS Register Select
6 A1 Address Input 35 R/W Read/Write Control
7 A0 Address Input 34 RES Reset (Low)
8 PA0 Port A I/O 33 D0 Data Bus Bit 0
9 PA1 Port A I/O 32 D1 Data Bus Bit 1
10 PA2 Port A I/O 31 D2 Data Bus Bit 2
11 PA3 Port A I/O 30 D3 Data Bus Bit 3
12 PA4 Port A I/O 29 D4 Data Bus Bit 4
13 PA5 Port A I/O 28 D5 Data Bus Bit 5
14 PA6 Port A I/O 27 D6 Data Bus Bit 6
15 PA7 Port A I/O 26 D7 Data Bus Bit 7
16 PB7 Port B I/O 25 IRQ Interrupt Request
17 PB6 Port B I/O 24 PB0 Port B I/O
18 PB5 Port B I/O 23 PB1 Port B I/O
19 PB4 Port B I/O 22 PB2 Port B I/O
20 Vcc +5V Power 21 PB3 Port B I/O
Applications:
  • Microprocessor support systems.
  • Embedded control circuits.
  • Vintage computer hardware designs.
  • Industrial control electronics.
  • Digital interface and timing applications.
Package Included:
  • 1x UM6532 RAM I/O Timer IC 5V 40mA DIP-40.
Datasheet:
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