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Part Name(s) : Z8430 Z84C30 Zilog
Zilog
Description : NMOS/CMOS Z80 CTC COUNTER/TIMER CIRCUIT View

NMOS/CMOS Z80 CTC COUNTER/TIMER CIRCUIT

Part Name(s) : Z0843004 Z0843004FEC Z0843004PEC Z0843004VEC Z0843006 Z0843006FEC Z0843006PEC Z0843006VEC Z843010 Z843010FEC Z843010PEC Z843010VEC Zilog
Zilog
Description : NMOS/CMOS Z80 CTC COUNTER/TIMER CIRCUIT View

NMOS/CMOS Z80 CTC COUNTER/TIMER CIRCUIT

Part Name(s) : NTE3882 NTE-Electronic
NTE Electronics
Description : Integrated CIRCUIT NMOS, Counter Timer Control (CTC) View

Description:
The NTE3882 Counter Timer CIRCUIT (CTC) is a programmable, four channel device in a 28–Lead DIP type package that provides counting and timing functions for the NTE3880. The NTE3880 configures the NTE3882’s four independent channels to operate under various modes and conditions as required.
   
Structure:
● N–Channel Silicon Gate Depletion Load Technology
● Single 5V Supply
● Single Phase 5V Clock
● Four Independent Programmable 8–Bit Counter/16–Bit Timer Channels
   
Features:
● Each Channel may be Selected to Operate in Either a Counter Mode or Timer Mode
● Programmable Interrupts on Counter or Timer States
● A Time Constant Register Automatically Reloads, the Down Counter at Zero
    and the Cycle is Repeated
● Readable Down Counter Indicates Number of Counts–to–Go until Zero
● Selectable 16 or 256 Clock Prescaler for Each Timer Channel
● Selectable Positive or Negative Trigger may Initiate Timer Operation
● Three Channels have Zero Count/Timeout Outputs capable
    of Driving Darlington Transistors
● Daisy Chain Priority Interrupt Logic Included to Provide for
    Automatic Interrupt Vectoring without
    External Logic
● All Inputs and Outputs Fully TTL Compatible
   

Part Name(s) : Z843004 Z843004FEC Z843004PEC Z843004VEC Z843006 Z843006FEC Z843006PEC Z843006VEC Z84C3004 Z84C3004FEC Z84C3004PEC Z84C3004VEC Z84C3006 Z84C3006FEC Z84C3006PEC Z84C3006VEC Z84C3008 Z84C3008FEC Z84C3008PEC Z84C3008VEC Z84C3010 Z84C3010FEC Z84C3010PEC Z84C3010VEC Zilog
Zilog
Description : COUNTER/TIMER CIRCUIT View

Z8430/Z84C90 NMOS/CMOS Z80 ®CTC COUNTER/TIMER CIRCUIT


Part Name(s) : Z84C0008FEC Z84C0008FEC1508 Z84C0008PEC Zilog
Zilog
Description : NMOS/CMOS Z80 CPU CENTRAL PROCESSING UNIT View

GENERAL DESCRIPTION
The Z8400/Z84C00 CPUs are fourth-generation enhanced microprocessors with exceptional computational power. They offer higher system throughput and more efficient memory utilization than comparable second- and thirdgeneration microprocessors. The speed offerings from 6 - 20 MHz suit a wide range of applications which migrate software. The internal registers contain 208 bits of read/ write memory that are accessible to the programmer. These registers include two sets of six general purpose registers which may be used individually as either 8-bit registers or as 16-bit register pairs. In addition, there are two sets of accumulator and flag registers. A group of “Exchange” instructions makes either set of main or alternate registers accessible to the programmer. The alternate set allows operation in foreground-background mode or it may be reserved for very fast interrupt response.

FEATURES
■ The Extensive Instruction Set.Contains 158 Instructions, Including the 8080A Instructions Set as a Subset.
■ Single 5 Volt Power Supply
■ NMOS Version for Low Cost, High Performance Solutions; CMOS Version for High Performance, Low Power Designs.
■ NMOS Z084004 - 4 MHz Z0840006 - 6.17 MHz Z084008 - 8 MHz
■ CMOS Z0840006 - DC to 6.17 MHz Z84C0008 - DC to 8 MHz Z84C0010 - DC to 10 MHz Z84C0020 - DC to 20 MHz
■ 6 MHz Version can be Operated at 6.144 MHz Clock Speed
■ The Z80 Microprocessors and Associated Family of Peripherals can be Linked by a Vectored Interrupt System. This System can be Daisy-Chained to Allow Implementation of a Priority Interrupt Scheme.
■ Duplicate Set of Both General-Purpose and Flag Registers
■ Two 16-Bit Index Registers
■ Three Modes of Maskable Interrupts:
    - Mode 0 - 8080A Similar
    - Mode 1 - Non-Z80 Environment, Location 38H
    - Mode 2 - Z80 Family Peripherals, Vectored Interrupts
■ On-Chip Dynamic Memory Refresh Counter

Part Name(s) : Z8400 Z840004 Z840006 Z840008 Z84C00 Z84C0004 Z84C0006 Z84C0006FEC Z84C0006PEG Z84C0006VEG Z84C0008 Z84C0008AEG Z84C0008PEG Z84C0008VEC Z84C0008VEG Z84C0010 Z84C0010AEG Z84C0010FEC Z84C0010PEC Z84C0010PEG Z84C0020 Z8400 Z840004 Z840006 Z840008 Zilog
Zilog
Description : NMOS/CMOS Z80 CPU Central Processing Unit View

Z8400/Z84C00

NMOS/CMOS Z80® CPU Central Processing Unit

Part Name(s) : LH0082 LH0082A LH0082AM LH0082AU LH0082B LH0082BU LH0082E LH0082M Sharp
Sharp Electronics
Description : Z80 CTC Count Timer CIRCUIT View

Part Name(s) : Z84C90 Z84C9008ASC Z84C9008ASG Z84C9008VEC Z84C9008VEG Z84C9008VSC Z84C9008VSG Z84C9010ASC Z84C9010ASG Z84C9010VEG Z84C9010VSC Z84C9010VSG Z84C9012VSC Z84C9012VSG Zilog
Zilog
Description : Z84C90 KIO Serial/Parallel COUNTER/TIMER View

Introduction
Zilog’s Z84C90 Serial/Parallel COUNTER/TIMER KIO is a multichannel, multipurpose I/O peripheral device designed to provide the end user with a cost-effective and powerful solution to meet an assortment of peripherals requirements. The Z84C90 KIO Peripheral combines the features of one Z84C30 CTC, one Z84C20 PIO and a Z84C4x SIO, plus an 8-bit, bit-programmable I/O port and a crystal oscillator into a single 84-pin PLCC or 100-pin LQFP package. Utilizing fifteen internal registers for data and programming information, the KIO can easily be configured to any given system environment. Although optimum performance is obtained with a Z84C00 CPU, the KIO can just as easily be used with any other CPU.

Features
The Z84C90 Serial/Parallel COUNTER/TIMER KIO offers the following features:
• Two independent synchronous/asynchronous serial channels
• Three 8-bit parallel ports
• Four independent COUNTER/TIMER channels
• On-chip clock oscillator/driver
• Software/hardware resets
• Designed in CMOS for low power operations
• Supports Z80 Family interrupt daisy chain
• Programmable interrupt priorities
• 8, 10 and 12.5 MHz bus clock frequency
• Single +5 V power supply

 

Part Name(s) : Z8410 Z84C10 Zilog
Zilog
Description : Z80 DMA Direct Memory Access Controller View

NMOS/CMOS Z80 DMA Direct Memory Access Controller

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