Z84C2008PEG Zilog, Z84C2008PEG Datasheet - Page 138

• 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

118
Operation:
Op Code:
Operands:
Description: The contents of the Index Register IY are pushed to the external memory
Condition Bits Affected: None
Example:
UM008005-0205
Z80 CPU
User’s Manual
(SP-2) ← IYL, (SP-1) ← IYH
PUSH
IY
LIFO (last-in, first-out) Stack. The Stack Pointer (SP) register pair holds the
16-bit address of the current top of the Stack. This instruction first
decrements the SP and loads the high order byte of IY to the memory
address specified by SP; then decrements SP again and loads the low order
byte to the memory location corresponding to this new address in SP.
If the Index Register IY contains
1007H
memory address
1005H.
1
1
1
1
, at instruction
M Cycles
1
1
4
1
0
1005H
1
0
PUSH IY
PUSH IY
contains
15 (4, 5, 3, 3)
1
1
T States
0
memory address
0
2233H
33H
1
1
, and the Stack Pointer contains
FD
E5
and the Stack Pointer Contains
4 MHz E.T.
1006H
3.75
Z80 Instruction Set
contains
22H
,