Z86L04 Zilog., Z86L04 Datasheet - Page 19

• Manufacturer Part Number: Z86L04
• Description: Z8 8-Bit Cost-Effective Microcontrollers
• Manufacturer: Zilog.

Zilog
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.
DS97LVO0901
Vss *
C1
C2
*
Ceramic
Resonator
or Crystal
† Note: If 32 KHz oscillator is selected then an external 10 Megohm resistor must be connected between XTAL1 and
XTAL2 pins.
†
XTAL2
XTAL1
Vss *
C1
C2
*
LC Clock
Figure 16. Oscillator Configuration
P R E L I M I N A R Y
L
*
XTAL2
XTAL1
=Device Ground Pin
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 16). Note that the
crystal capacitor loads should be connected to V
to reduce Ground noise injection.
External Clock
XTAL1
XTAL2
Z8 8-Bit Cost-Effective Microcontrollers
C
Vss *
RC Clock
R
XTAL1
XTAL2
Z86L04/L08
SS
, Pin 14
19
1