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IN80CL31N/IN80CL51N
CMOS LOW-VOLTAGE SINGLE-CHIP 8-BIT MICROCONTROLLER
The 80CL31/80CL51 is a high-performance microcontroller fabricated with high-density CMOS technology. The instruction set is based on that the 80C51.The 80CL51 is general purpose microcontroller especially suited for battery powered applications. The device has low power consumption and a wide range of supply voltage. The 80CL51 contains a 4k x 8 ROM , a 128 x 8 RAM , 32 I/O lines, two 16-bit counter/timers, a five-source, two-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART, and onchip oscillator and clock circuits. The device has two software selectable modes of power reduction idle mode and power-down mode. The idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. FEATURES
Full static 80C51 CPU 4k x 8 ROM (80CL51) ROMless (80CL31) 128 x 8 RAM Two 16-bit counter/timers Full duplex serial channel Boolean processor Memory addressing capability 64k ROM and 64k RAM Power control modes: Idle mode Power-down mode CMOS and TTL compatible Thirteen source, thirteen vector interrupt structure with two priority levels Wake-up via external interrupts in Port1 Single supply voltage of 1.8V to 6.0V Frequency range of 0 to 16 MHz Very low current consumption
PIN CONFIGURATIONS
I N T 2 /P P .0.0 11 I N T 3 /P 1 .1 I N T 4 /P 1 .2 I N T 5 /P 1 .3 I N T 6 /P 1 .4 I N T 7 /P 1 .5 I N T 8 /P 1 .6 I N T 9 /P 1 .7 R ST T A /P 3 .0 O C K /P 3 .2 I N T 0 /P 3 .2 I N T 1 /P 3 .3 T 0 /P 3 .4 T 1 /P 3 .5 W R /P 3 6 R D /P 3 .7 XTAL2 XTAL1 V ss 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 P L A S T IC DUAL IN - L IN E PAC KAGE 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 V cc P 0 .0 /A D 0 P 0 .1 /A D 1 P 0 .2 /A D 2 P 0 .3 /A D 3 P 0 .4 /A D 4 P 0 .5 /A D 5 P 0 .6 /A D 6 P 0 .7 /A D 6 EA ALE PSEN P 2 .7 /A 1 5 P 2 .6 /A 1 4 P 2 .5 /A 1 3 P 2 .4 /A 1 2 P 2 .3 /A 1 1 P 2 .2 /A 1 0 P 2 .1 /A 9 P 2 .0 /A 8
CMOS single-chip 8-bit microcontroller 80CL31/80CL51 1
IN80CL31N/IN80CL51N
DC ELECTRICAL CHARACTERISTICS FOR INTEGRAL DEVICES T=-10 oC to + 70oC; Vcc= 5V 10%
Parameter Symbol Vcc Vcc1 Test conditions Min 1,8 1,0 Limits Max 6,0
Icc1 Icc2 Icc3
Icc1 Icc2 Icc3 Ipd Vil Vih Iil Itl Ili Iol Ioh
Rrst
RAM retention in power down mode, V SUPPLY CURRENT OPERATING OSC 1 option, mA Vcc = 1,8 V Fclc = 32MHz OSC 1 option, mA Vcc = 3,0 V Fclc = 3,58MHz OSC 1 option, mA Vcc = 5,0 V Fclc = 16MHz IDLE MODE OSC 1 option, mA Vcc = 1,8 V Fclc = 32MHz OSC 1 option, mA Vcc = 3,0 V Fclc = 3,58MHz OSC 1 option, mA Vcc = 5,0 V Fclc = 16MHz Pover-down current, mkA Vcc=1,8V; Tamb+25oC INPUTS: LOW level input voltage, V HIGH level input voltage, V Input current logic 0, mA Vi=0,4 V, Vcc=5V (Ports 1, 2 and 3) Vi=0,4 V, Vcc=2,5V Input current logic 1, mA Vi=2 V, Vcc=5V (Ports 1, 2 and 3) Vi=2 V, Vcc=2,5V Input leakage current, mkA VssViVcc (Port 0, EA) OUTPUTS: Output sink current LOW, Vol = 0,4 V, Vcc=5V mA Vol = 0,4 V, Vcc=2,5V Output source current Vol = Vcc-0,4 V, Vcc=5V HIGH, (Push-pull options Vol = Vcc-0,4 V, Vcc=2,5V only), mA RST pull-down resistor, kOm
-
50 2,5 26
-
25 1,0 12
Vss 0,2Vcc +0,9 -
10 0,3Vcc Vcc 100 50 1000 500 10
1,6 0,7 1,6 0,7 10
-
200
AC ELECTRICAL CHARACTERISTICS FOR INTEGRAL DEVICES T=-10 oC to + 70oC; Vcc= 5V 10%
Symbol Fclc Parameter Variable Oscillator Min Max Oscillator Frequency: 0 12 0 16 0 12 0 16 Unit
IN80CL31N - 12 IN80CL31N - 16 IN80CL51N - 12 IN80CL51N - 16
MHz MHz MHz MHz
2

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