COP87LXXCJ Datasheet, PDF (5/28 Pages) National Semiconductor (TI) – 8-Bit CMOS OTP Microcontrollers with 4k or 32k Memory and Comparator

DC Electrical Characteristics (Continued)
Note 4: The HALT mode will stop CKI from oscillating in the RC and crystal configurations by bringing CKI high. HALT test conditions: L, and G0..G5 ports configured
as outputs and set high. The D port set to zero. All inputs tied to V_CC. The comparator is disabled.
Note 5: The user must guarantee that D2 pin does not source more than 10 mA during RESET. If D2 sources more than 10 mA during reset, the device will go into
programming mode.
Note 6: Pins G6 and RESET are designed with a high voltage input network. These pins allow input voltages greater than V_CC and the pins will have sink current
to V_CC when biased at voltages greater than V_CC (the pins do not have source current when biased at a voltage below V_CC). The effective resistance to V_CC is 750Ω
(typical). These two pins will not latch up. The voltage at the pins must be limited to less than 14V.
AC Electrical Characteristics
−40˚C ≤ T_A ≤ +85˚C unless otherwise specified
Parameter
Conditions
Instruction Cycle Time (tc)
Crystal/Resonator
R/C Oscillator
CKI Clock Duty Cycle (Note 7)
4.5V ≤ V_CC ≤ 5.5V
4.5V ≤ V_CC ≤ 5.5V
fr = Max
Rise Time (Note 7)
fr = 10 MHz ext. Clock
Fall Time (Note 7)
fr = 10 MHz ext. Clock
Inputs
t_Setup
t_Hold
Output Propagation Delay
t_PD1, t_PD0
SO, SK
All Others
Input Pulse Width
4.5V ≤ V_CC ≤ 5.5V
4.5V ≤ V_CC ≤ 5.5V
R_L = 2.2k, CL = 100 pF
4.5V ≤ V_CC ≤ 5.5V
4.5V ≤ V_CC ≤ 5.5V
Interrupt Input High Time
Interrupt Input Low Time
Timer Input High Time
Timer Input Low Time
MICROWIRE™ Setup Time (t_µWS)
MICROWIRE Hold Time (t_µWH)
MICROWIRE Output
Propagation Delay (t_µPD)
Reset Pulse Width
Note 7: Parameter characterized but not production tested.
Min
Typ
Max
Units
1
DC
µs
2
DC
µs
40
60
%
12
ns
8
ns
200
ns
60
ns
0.7
µs
1
µs
1
tc
1
tc
1
tc
1
tc
20
ns
56
ns
220
ns
1
µs
DS012529-4
FIGURE 3. MICROWIRE/PLUS Timing
5
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