Z86L04 Datasheet, PDF (19/26 Pages) Zilog, Inc. – Z8 8-Bit Cost-Effective Microcontrollers

Zilog
Z86L04/L08
Z8 8-Bit Cost-Effective Microcontrollers
Clock. The Z8 on-chip oscillator has a high-gain, parallel- The crystal or ceramic resonator should be connected
resonant amplifier for connection to a crystal, ceramic res- across XTAL1 and XTAL2 using the vendors crystal or ce-
onator, or any suitable external clock source (XTAL1 = IN-
PUT, XTAL2 = OUTPUT). The crystal should be AT cut,
ramic resonator recommended capacitors from each pin
directly to device ground pin 14 (Figure 16). Note that the
1
8 MHz max, with a series resistance (RS) of less than or crystal capacitor loads should be connected to V_SS, Pin 14
equal to 100 Ohms.
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
† Note: If 32 KHz oscillator is selected then an external 10 Megohm resistor must be connected between XTAL1 and
XTAL2 pins.
Figure 16. Oscillator Configuration
DS97LVO0901
PRELIMINARY
19