Z84C2008PEG Zilog, Z84C2008PEG Datasheet - Page 287

• 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:
Operands:
Description: The current Program Counter (PC) contents are pushed onto the external
UM008005-0205
(SP-1) ← PCH, (SP-2) ← PCL, PCH ← 0, PCL ← P
RST
p
memory stack, and the page zero memory location given by operand p is
loaded to the PC. Program execution then begins with the Op Code in the
address now pointed to by PC. The push is performed by first decrementing
the contents of the Stack Pointer (SP), loading the high-order byte of PC to
the memory address now pointed to by SP, decrementing SP again, and
loading the low order byte of PC to the address now pointed to by SP. The
Restart instruction allows for a jump to one of eight addresses indicated in
the table below. The operand
corresponding T state.
Because all addresses are in page zero of memory, the high order byte of
PC is loaded with
is loaded to the low order byte of PC.
1
1
M Cycles
00H
08H
10H
18H
20H
28H
30H
38H
p
3
t
00H
. The number selected from the p column of the table
RST p
1
11 (5, 3, 3)
T States
p
000
001
010
011
100
101
110
111
is assembled to the object code using the
1
t
1
4 MHz E.T.
2.75
Z80 Instruction Set
User’s Manual
Z80 CPU
267