Z84C9008VSG Zilog, Z84C9008VSG Datasheet - Page 195

• Manufacturer Part Number: Z84C9008VSG
• Description: IC 8MHZ Z80 KIO 84-PLCC
• Manufacturer: Zilog
• Series: Z80r

Specifications of Z84C9008VSG

• Processor Type: Z80
• Features: Serial/Parallel Input/Output, Counter/Timer Circuit
• Speed: 8MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 84-LCC (J-Lead)
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Cpu Speed: 8MHz
• Digital Ic Case Style: LCC
• No. Of Pins: 84
• Supply Voltage Range: 5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Rohs Compliant: Yes
• 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