CXP922P032 Datasheet, PDF (18/28 Pages) Sony Corporation – CMOS 16-bit Single Chip Microcomputer

CXP922P032
AC Characteristics
(1) Clock timing
(Topr = –20 to +75°C, VDD = 2.7 to 5.5V, VSS = 0V reference)
Item
Symbol Pins
Main clock base oscillation
frequency
fEX
XTAL
EXTAL
Main clock base oscillation tXL,
input pulse width
tXH
Main clock base oscillation tXR,
input rise time, fall time
tXF
EXTAL
EXTAL
Conditions
Min.
VDD = 3.0 to 5.5V 1
Fig.1, Fig.2
1
Fig.1, Fig.2 ^{VDD = 3.0 to 5.5V 23}
External clock drive
37.5
Fig.1, Fig.2
External clock drive
Typ.
Max. Unit
20
MHz
12
ns
100 ns
Note) tsys indicates the four values below according to the upper two bits (PCK1,PCK0) of the clock control
register (CLC: 0002FEh).
tsys [ns] = 2/fEX (PCK1, PCK0 = 00), 4/fEX (PCK1, PCK0 = 01), 8/fEX (PCK1, PCK0 = 10), 16/fEX (PCK1,
PCK0 = 11)
1/fEX
EXTAL
tXH
tXF
tXL
Fig.1. Clock timing
0.7VDD
0.3VDD ( VDD = 4.5 to 5.5 V )
0.2VDD ( VDD = 2.7 to 5.5 V )
tXR
Oscillator connection
example of
main oscillation circuit
Connection example of
external clock
EXTAL XTAL
EXTAL XTAL
C1
C2
74HC04
Fig.2. Oscillator connection and clock applied conditions
– 18 –