Product Summary

The QU80C188EC-25 is one of the highest integration members of the 186 Integrated Processor Family. Two serial ports are provided for services such as interprocessor communication, diagnostics and modem interfacing. Four DMA channels of QU80C188EC-25 allow for high speed data movement as well as support of the onboard serial ports. A flexible chip select unit simplifies memory and peripheral interfacing. The three general purpose timer/counters of QU80C188EC-25 can be used for a variety of time measurement and waveform generation tasks. A watchdog timer is provided by QU80C188EC-25 to insure system integrity even in the most hostile of environments. Two 8259A compatible interrupt controllers handle internal interrupts, and, up to 57 external interrupt I/O ports round out the feature set of the QU80C188EC-25.

Parametrics

QU80C188EC-25 absolute maximum ratings: (1)Storage Temperature: 65℃ to +150℃; (2)Case Temperature Under Bias: 65℃ to +100℃; (3)Supply Voltage with Respect to VSS: 0.5V to +6.5V; (4)Voltage on Other Pins with Respect to VSS: -0.5V to VCC+0.5V.

Features

QU80C188EC-25 features: (1)Low-Power, Static, Enhanced 8086 CPU Core; (2)Two Independent DMA Supported UARTs, each with an Integral Baud Rate Generator; (3)Four Independent DMA Channels; (4)22 Multiplexed I/O Port Pins; (5)Two 8259A Compatible Programmable Interrupt Controllers; (6)Three Programmable 16-Bit Timer/Counters; (7)32-Bit Watchdog Timer; (8)Ten Programmable Chip Selects with Integral Wait-State Generator; (9)Memory Refresh Control Unit; (10)Power Management Unit; (11)On-Chip Oscillator; (12)System Level Testing Support (ONCE Mode); (13)Direct Addressing Capability to 1 Mbyte Memory and 64 Kbyte I/O; (14)Low-Power Operating Modes:; (15)Available in Extended Temperature Range (-40℃ to +85℃); (16)Supports 80C187 Numerics Processor Extension.

Diagrams

QU80C188EC-25 block diagram

QU80L186EC13
QU80L186EC13


IC MPU 16-BIT 3V 13MHZ 100-QFP

Data Sheet

Negotiable 
QU80L186EC16
QU80L186EC16


IC MPU 16-BIT 3V 16MHZ 100-QFP

Data Sheet

Negotiable 
QU80L188EC13
QU80L188EC13


IC MPU 16-BIT 3V 13MHZ 100-QFP

Data Sheet

Negotiable 
QU80C188EC25
QU80C188EC25


IC MPU 16-BIT 5V 25MHZ 100-QFP

Data Sheet

Negotiable 
QU80C188EC20
QU80C188EC20


IC MPU 16-BIT 5V 20MHZ 100-QFP

Data Sheet

Negotiable 
QU80C186EC25
QU80C186EC25


IC MPU 16BIT 5V 25MHZ 100QFP

Data Sheet

Negotiable