Z0847006PSG Zilog, Z0847006PSG Datasheet - Page 33

• 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

<   % 2 7 2 G T K R J G T C N U
7 U G T / C P W C N
 
an interrupt from any CTC channel. Therefore, this signal blocks lower-
priority devices from interrupting while a higher-priority interrupting
device is being serviced by the CPU.
INT
Interrupt Request (output, open-drain, active Low). This signal goes
true when a CTC channel, which has been programmed to enable
interrupts, has a zero-count condition in its down-counter.
RESET
Reset (input, active Low). This signal stops all channels from counting
and resets interrupt enable bits in all control registers, thereby disabling
CTC-generated interrupts. The ZC/TO and INT outputs go inactive, IEO
reflects IEI, and the CTC’s data bus output drivers go to the high-
impedance state.
CLK/TRG3–CLK/TRG0
External Clock/Timer Trigger (input, user-selectable active High or
Low). Four CLK/TRG pins correspond to the four independent CTC
channels. In the Counter mode, every active edge on this pin decrements
the down-counter. In the TIMER mode, an active edge on this pin initiates
the timing function. The user may select the active edge to be either rising
or falling.
ZC/TO2-AC/TO0
Zero Count/Timeout (output, active High). Three ZC/TO pins
correspond to CTC Channels 2 through 0. (Because of package pin
limitations Channel 3 has no ZC/TO pin.) In either COUNTER mode or
TIMER mode, when the down-counter decrements to zero, an active High
pulse appears at this pin.
UM008101-0601
Counter/Timer Channels