Z86C02 Datasheet, PDF (23/37 Pages) Zilog, Inc. – Two On-Board Comparators

Zilog
Z86C02/E02/L02
Cost Effective, 512-Byte ROM CMOS Z8^® Microcontrollers
IRQ0 - IRQ5
1
IRQ
Interrupt
Request
Global
Interrupt
Enable
IMR
5
IPR
Priority
Logic
Vector Select
Figure 16. Interrupt Block Diagram
Clock. The Z8 on-chip oscillator has a high-gain, parallel-
resonant amplifier for connection to a crystal, ceramic res-
onator, or any suitable external clock source (XTAL1 = IN-
PUT, XTAL2 = OUTPUT). The crystal should be AT cut,
8 MHz max, with a series resistance (RS) of less than or
equal to 100 Ohms.
The crystal or ceramic resonator should be connected
across XTAL1 and XTAL2 using the vendors crystal or ce-
ramic resonator recommended capacitors from each pin
directly to device ground pin 14 (Figure 17). Note that the
crystal capacitor loads should be connected to V_SS, Pin 14
to reduce Ground noise injection.
XTAL1
XTAL1
C1
C1
*
*
L
C2
Vss *
XTAL2
C2
Vss *
XTAL2
XTAL1
C
XTAL2
Vss *
XTAL1
R
XTAL2
Ceramic
Resonator
or Crystal
LC Clock
External Clock
* ^{=Device Ground Pin}
RC Clock
Figure 17. Oscillator Configuration
DS96DZ80301
PRELIMINARY
23