Z84C2008PEG Zilog, Z84C2008PEG Datasheet - Page 195

• 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

Operation:
Op Code:
Description: The enable interrupt instruction sets both interrupt enable flip flops (IFFI
Condition Bits Affected: None
Example:
UM008005-0205
IFF ← 1
EI
and IFF2) to a logic 1, allowing recognition of any maskable interrupt. Note
that during the execution of this instruction and the following instruction,
maskable interrupts are disabled.
When the CPU executes instruction
enabled at execution of the
1
1
M Cycles
1
1
1
1
0
RETI
EI
T States
1
4
instruction.
1
El RETI
FB
4 MHz E.T.
the maskable interrupt is
1.00
Z80 Instruction Set
User’s Manual
Z80 CPU
175