UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 873

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

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(5) Meter controller/driver and ZPD characteristics
Notes 1.
Remark m = 1 to 4, n = 1 to 4
Meter Controller/Driver Output Timing
Meter controller/driver input
frequency
PWM output rise time
PWM output fall time
Peak cross current
Output pulse width
Output pulse length deviation
Symmetry performance
(T
V
SS
A
2.
3.
4.
5.
6.
= EV
=
Parameter
Source clock of the free-running counter.
C is the load capacitance of the PWM output line.
The slew rate control generates a cross current in the output stage to control the energy of the external
inductive load. The cross current flows only during the output transition time t
the output current. The cross current is not tested, but derived from simulation.
The output buffer can not generate high or low pulses shorter than this time, because of its slew rate
control system. This value is not tested, but derived from simulation.
The slew rate control function causes a deviation of output pulse time compared to the ideal selected
output pulse setting. This value is not tested, but derived from simulation.
Indicates the dispersion of up to 16 PWM output voltages. Not tested in production, specified by design.
40 to +85 C, 2.7 V
SS
= AV
Note 4
CHAPTER 29 ELECTRICAL SPECIFICATIONS ((A) GRADE PRODUCTS) (TARGET)
Note 3
SS
Note 6
= SMV
Note 5
SS
= 0 V)
f
t
t
I
t
t
ΔHSPmn I
ΔHSPmn I
Symbol
MC
R
F
CROSS
MO
SMDEV
SMmn
Note 1
V
DD
Preliminary User’s Manual U19748EJ1V0UD
t
V
C = 50 pF
(10% - 90%)
C = 50 pF
(10% - 90%)
ΔHSPmn = |V
ΔHSPmn = |V
= EV
R
OH
OL
DD
= 27 mA
= 27 mA
= 4.5 V to 5.5 V
DD
Note 2
Note 2
OH
OL
5.5 V, 2.7 V
Conditions
[(SMmn)max (SMmn)min]|
[(SMmn)max (SMmn)min]|
4.5 V
2.7 V
4.5 V
2.7 V
SMV
SMV
SMV
SMV
t
F
DD
DD
DD
DD
AV
5.5 V
5.5 V
5.5 V
5.5 V
0.9 V
0.1 V
REF
DD
DD
5.5 V, 2.7 V
MIN.
125
12
12
12
12
40
R
, t
TYP.
25
25
25
25
F
. It flows in addition to
SMV
MAX.
200
200
+10
20
10
70
70
50
50
50
DD
MHz
Unit
5.5 V,
mA
mV
mV
ns
ns
ns
ns
871