Z0847006PSG Zilog, Z0847006PSG Datasheet - Page 80

• Manufacturer Part Number: Z0847006PSG
• Description: IC 6MHZ Z80 NMOS DART 40-DIP
• Manufacturer: Zilog
• Series: Z80r

Specifications of Z0847006PSG

• Processor Type: Z80
• Features: Dual Channel Asynchronous Receiver/Transmitter (DART)
• Speed: 6MHz
• Voltage: 5V
• Mounting Type: Through Hole
• Package / Case: 40-DIP (0.620", 15.75mm)
• Mounting Style: Through Hole
• Cpu Speed: 6MHz
• Digital Ic Case Style: DIP
• No. Of Pins: 40
• Supply Voltage Range: 5V
• Operating Temperature Range: 0°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Base Number: 847006
• Rohs Compliant: Yes
• Clock Frequency: 6MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN DESCRIPTION
UM008101-0601
<   % 2 7 2 G T K R J G T C N U
7 U G T / C P W C N
Table 10. Events and Actions
The following pin descriptions detail the function of the Z80 DMA external
pins as illustrated in Figure 25 through Figure 28.
A15-A0
System Address Bus (output, tristate). Addresses generated by the DMA are
sent to both source and destination ports, either of which may be main
memory or I/O peripherals.
Event
End-of-Block
Byte Match (Compare)
Pulse-control byte matches lower part of
byte counter
READY Inactive
READY Active
RETI Instruction (return from interrupt
instruction from the Z80 CPU)
Actions Possible When Event
Occurs
1. Release Bus
2. Interrupt CPU
3. Auto Restart
1. Release Bus
2. Interrupt CPU
3. Continue
1. Generate Pulse
1. Release Bus
2. Suspend (continuous mode
only)
1. Request Bus
2. Interrupt CPU
1. Request Bus
Direct Memory Access