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-----------------------------------------------------------------------------HMCS404AC
• AC CHARACTERISTICS (Ve e =4.5V to 6V, GND = OV, Vdisp = Vee-40V to Vee, Ta = -20 to +75°C, if not specified.)
Value
Item
Symbol
Pin Name
Test Conditions
Unit
Note
min
typ
max
Oscillation Frequency
fosc
OSC!,OSC2
0.4
6
6.2
MHz
Instruction Cycle Time
tCyc
1.29
1.33
20
/.ls
Oscillator Stabilization Time
tRC
OSC!,OSC2
-
-
20
ms
1
External Clock "H igh"
tCPH
OSC!
70
-
-
ns
2
Level Width
External Clock "Low"
tCPL
OSC!
70
-
-
2
Level Width
ns
External Clock Rise Time
tCPr
OSC!
-
-
20
ns
2
External Clock Fall Time
tCPf
OSC!
-
-
20
ns
2
INTo "High" Level Width
tlOH
INTo
2
-
-
tcyc
3
INTo "Low" Level Width
tlOL
INTo
2
-
-
tcyc
3
INT! "High" Level Width
tl1H
INT!
2
-
-
tcyc
3
INT! "Low" Level Width
tl1 L
INT!
2
-
-
tcyc
3
RESET "High" Level Width
tRSTH
RESET
2
-
-
tcyc
4
Input Capacitance
Cin
all pins
f = 1 MHz
-
15
pF
Vin = 0 V
-
RESET Fall Time
tRSTf
-
-
20
ms
4
(Note 1) Oscillator stabilization time is the time until the oscillator stabilizes after VCC reaches 4.5V at "Power-on", or after RESET input level goes
"High" by resetting to quit the stop mode by MCU reset. The circuits used to measure the value are described below. When using crystal
or ceramic filter oscillator, please ask a crystal oscillator maker's or ceramic filter maker's advice because oscillator stabilization time
depends on the circuit constant and stray capacity.
Crystal oscillator
GND
Crystal: 6.0MHz NC-1BC (Nihon Denpa Kogyo)
Rf : 1M!l ±2%
C, : 20pF ±20%
C. : 20pF ± 20%
(Note 2)
OSC,
tCPr
tCPf
(Note 4)
RESET
Ceramic filter oscillator
Ceramic filter: CSA6.00MG (Murata)
Rf
: 1M!l±2%
C,
: 30pF ± 20%
C.
: 30pF ± 20%
(Note 3)
303
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