ZLP128ICE01ZEM Zilog, ZLP128ICE01ZEM Datasheet - Page 99

• Manufacturer Part Number: ZLP128ICE01ZEM
• Description: EMULATOR CRIMZON Z8 ZLP12840
• Manufacturer: Zilog

Specifications of ZLP128ICE01ZEM

• Interface Type: RS-232, Ethernet, USB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 269-3829

Clock
PS024410-0108
The device’s on-chip oscillator has a high-gain, parallel-resonant amplifier, for connection
to a crystal, ceramic resonator, or any suitable external clock source (XTAL1 = Input,
XTAL2 = Output). The crystal must be AT cut, 1 MHz to 8 MHz maximum, with a series
resistance (RS) less than or equal to 100 Ω. The on-chip oscillator can be driven with a
suitable external clock source.
The crystal must be connected across XTAL1 and XTAL2 using the recommended capac-
itors from each pin to ground. The typical capacitor value is 10 pF for 8 MHz. Also check
with the crystal supplier for the optimum capacitance.
Zilog
frequency tolerance of less than ±0.5%, which is enough for remote control application.
Resonator has a very fast startup time, which is around few hundred microseconds. Most
crystals have a frequency tolerance of less than 50 ppm (±0.005%). However, crystal
needs longer startup time than the resonator. The large loading capacitance slows down the
oscillation startup time. Zilog suggests not to use more than 10 pF loading capacitor for
the crystal. If the stray capacitance of the PCB or the crystal is high, the loading
capacitance C1 and C2 must be reduced further to ensure stable oscillation before the
T
For Stop Mode Recovery operation, bit 5 of SMR register allows you to select the Stop
Mode Recovery delay, which is the T
MCU executes instruction immediately after it wakes up from the STOP mode. If
POR
®
(Power-On Reset time is typically 5–6 ms, see
IR MCU supports crystal, resonator, and oscillator. Most resonators have a
C1
C2
Crystal
C1, C2 = 10 pF *
f = 8 MHz
*Note: preliminary value.
XTAL1
XTAL2
P R E L I M I N A R Y
Figure 32. Oscillator Configuration
POR
. If Stop Mode Recovery delay is not selected, the
External Clock
XTAL1
XTAL2
Table 62
on page 132).
Ceramic Resonator f = 8 MHz
Product Specification
XTAL1
XTAL2
Clock
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