National Semiconductor COP820CJ, Руководство пользователя

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CO
P
8
2
0
C
J/
C
O
P8
22
C
J/
C
O
P8
23
C
J
DC E le c tric a l C h a ra c te ris tic s
—40°C ^ T
a
^ + 85°C unless otherwise specified (Continued)
Parameter Conditions Min Typ Max Units
Maximum Input Current
without Latchup (Note 4)
Room Temperature
±100 mA
RAM Retention Voltage, Vr
500 ns Rise and
Fall Time (Min)
2.0 V
Input Capacitance 7
PF
Load Capacitance on D2
1000
PF
Note 1: Rate of voltage change must be less than 10 V/mS.
Note 2: Supply current Is measured after running 2000 cycles with a square wave CKI input, CKO open, inputs at rails and outputs open.
Note 3: The HALT mode will stop CKI from oscillating in the RC and crystal configurations. HALT test conditions: L, and G0..G5 ports configured as outputs and set
high. The D port set to zero. All inputs tied to Vcc- The comparator and the Brown Out circuits are disabled.
Note 4: Pins G6 and RESET are designed with a high voltage input network. These pins allow input voltages greater than Vcc and the pins will have sink current to
Vcc when biased at voltages greater than Vcc (the Pins do not have source current when biased at a voltage below Vcc)- The effective resistance to Vcc is 750ft
(typical). These two pins will not latch up. The voltage at the pins must be limited to less than 14V.
A C E le c tric a l C h a ra c te ris tic s
—40°C ^ T
a
^ + 85°C unless otherwise specified
Parameter Conditions Min Typ Max
Units
Instruction Cycle Time (tc)
Crystal/Resonator
4.5V <; Vcc ^ 6.0V
1 DC
JUS
2.5V £ VCc ^ 4.5V
2.5 DC
JUS
R/C Oscillator
4.5V ^ VCc ^ 6.0V
3 DC
JUS
2.5V ^ VCc ^ 4.5V 7.5 DC
JUS
Vcc Rise Time when Using Brown Out
VCc = 0V to 6V
50
JUS
Frequency at Brown Out Reset 4 MHz
CKI Frequency For Modular Output 4
MHz
CKI Clock Duty Cycle (Note 5)
fr = Max 40 60 %
Rise Time (Note 5)
fr = 10 MHz ext. Clock 12 ns
Fall Time (Note 5) fr = 10 MHz ext. Clock 8 ns
Inputs
t
Set up
4.5V £ VCc ^ 6.0V 200 ns
2.5V <: VCc ^ 4.5V
500 ns
‘ Hold
4.5V <; VCc ^ 6.0V
60 ns
2.5V ^ VCc ^ 4.5V
150
ns
Output Propagation Delay
tpDi . tpDO
RL = 2.2k, CL = 100 pF
SO, SK
4.5V ^ VCc ^ 6.0V
0.7
JUS
2.5V VCc ^ 4.5V
1.75
JUS
All Others
4.5V <; VCc ^ 6.0V
1
JUS
2.5V £ VCc ^ 4.5V 5
JUS
Input Pulse Width
Interrupt Input High Time
1 tc
Interrupt Input Low Time
1 tc
Timer Input High Time
1 tc
Timer Input Low Time 1 tc
MICROWIRE Setup Time (t^yvs)
20
ns
MICROWIRE Hold Time (t^WH) 56 ns
MICROWIRE Output
Propagation Delay (t^po)
220 ns
Reset Pulse Width 1.0
JUS
Note 5: Parameter characterized but not production tested.
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