Z84C2008PEG Zilog, Z84C2008PEG Datasheet - Page 29
![IC 8MHZ Z80 CMOS PIO 40-DIP](/photos/6/57/65796/269-40-dip_sml.jpg)
Z84C2008PEG
Manufacturer Part Number
Z84C2008PEG
Description
IC 8MHZ Z80 CMOS PIO 40-DIP
Manufacturer
Zilog
Series
Z80r
Specifications of Z84C2008PEG
Processor Type
Z80
Features
Low Power CMOS
Speed
8MHz
Voltage
5V
Mounting Type
Through Hole
Package / Case
40-DIP (0.620", 15.75mm)
Cpu Speed
8MHz
Digital Ic Case Style
DIP
No. Of Pins
40
Supply Voltage Range
5V
Operating Temperature Range
-40°C To +100°C
Svhc
No SVHC (18-Jun-2010)
Rohs Compliant
Yes
Processor Series
Z84C2xx
Core
Z80
Data Bus Width
8 bit
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
16
Operating Supply Voltage
0 V to 5 V
Maximum Operating Temperature
+ 100 C
Mounting Style
Through Hole
Minimum Operating Temperature
- 40 C
Base Number
84
Clock Frequency
8MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z84C2008PEG
Manufacturer:
Zilog
Quantity:
20
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Z80 CPU
User’s Manual
9
IORQ
Input/Output Request (output, active Low, tristate). IORQ indicates that
the lower half of the address bus holds a valid I/O address for an I/O read or
write operation. IORQ is also generated concurrently with M1 during an
interrupt acknowledge cycle to indicate that an interrupt response vector can
be placed on the data bus.
M1
Machine Cycle One (output, active Low). M1, together with MREQ,
indicates that the current machine cycle is the opcode fetch cycle of an
instruction execution. M1 together with IORQ, indicates an interrupt
acknowledge cycle.
MREQ
Memory Request (output, active Low, tristate). MREQ indicates that the
address bus holds a valid address for a memory read of memory write
operation.
NMI
Non-Maskable Interrupt (input, negative edge-triggered). NMI has a
higher priority than INT. NMI is always recognized at the end of the current
instruction, independent of the status of the interrupt enable flip-flop, and
automatically forces the CPU to restart at location
.
0066H
RD
Read (output, active Low, tristate). RD indicates that the CPU wants to
read data from memory or an I/O device. The addressed I/O device or
memory should use this signal to gate data onto the CPU data bus.
RESET
Reset (input, active Low). RESET initializes the CPU as follows: it resets
the interrupt enable flip-flop, clears the PC and registers I and R, and sets the
UM008005-0205
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