Z86L8608SSC View Datasheet(PDF) - Maxim Integrated
Part Name
Description
MFG CO.
'Z86L8608SSC' PDF : 88 Pages View PDF
Z86L81/86/98
28-Pin Low-Voltage Infrared Microcontrollers
52
C1
XTAL1
C1
XTAL1
L
XTAL2
C2
C2
XTAL2
Ceramic Resonator or Crystal
C1, C2 = 47 pF TYP *
f = 8 MHz
LC
C1, C2 = 22 pF
L = 130 H *
f = 3 MHz *
C1
XTAL1
R
XTAL2
RC
@ 3V VCC (TYP)
C1 = 33 pF *
R = 1K *
C1
Rf
XTAL1
XTAL1
C2
Rd
XTAL2
32 kHz XTAL
C1 = 20 pF, C = 33 pF
Rd = 56 - 470K
Rf = 10 M
XTAL2
External Clock
* Preliminary value including pin parasitics
Figure 27. Oscillator Configuration
Power-On Reset (POR)
A timer circuit clocked by a dedicated on-board RC oscillator is used for the
Power-On Reset (POR) timer function. The POR time allows VCC and the oscilla-
tor circuit to stabilize before instruction execution begins.
The POR timer circuit is a one-shot timer triggered by one of three conditions:
• Power Fail to Power OK status, including Waking up from VBO Standby
• Stop-Mode Recovery (if D5 of SMR = 1)
• WDT Timeout
The POR timer is a nominal 5 ms. Bit 5 of the Stop-Mode Register determines
whether the POR timer is bypassed after Stop-Mode Recovery (typical for external
clock, RC, LC oscillators).
19-4615; Rev 0; 4/09
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