COP888EK Datasheet, PDF (6/46 Pages) National Semiconductor (TI) – 8-Bit CMOS ROM Based Microcontrollers with 8k Memory, Comparator, and Single-slope A/D Capability

DC Electrical Characteristics 98xEK: (Continued)
0˚C ≤ T_A ≤ + 70˚C unless otherwise specified
Parameter
Input Capacitance
Load Capacitance on D2
Conditions
Min
Typ
Max
7
1000
Units
pF
pF
AC Electrical Characteristics 98xEK:
0˚C ≤ T_A≤ + 70˚C unless otherwise specified
Parameter
Conditions
Min
Typ
Max
Units
Instruction Cycle Time (t_c)
Crystal, Resonator,
R/C Oscillator
Inputs
4.0V ≤ V_CC ≤ 6.0V
1.0
2.5V ≤ V_CC < 4.0V
2.5
4.0V ≤ V_CC ≤ 6.0V
3.0
2.5V ≤ V_CC < 4.0V
7.5
t_SETUP
4.0V ≤ V_CC ≤ 6.0V
200
2.5V ≤ V_CC < 4.0V
500
t_HOLD
4.0V ≤ V_CC ≤ 6.0V
60
2.5V ≤ V_CC < 4.0V
150
Output Propagation Delay (Note 7)
R_L = 2.2k, C_L = 100 pF
t_PD1, t_PD0
SO, SK
4.0V ≤ V_CC ≤ 6.0V
2.5V ≤ V_CC < 4.0V
All Others
4.0V ≤ V_CC ≤ 6.0V
2.5V ≤ V_CC < 4.0V
MICROWIRE™Setup Time (t_UWS) (Note 7)
V_CC ≥ 4.0V
20
MICROWIRE Hold Time (t_UWH) (Note 7)
V_CC ≥ 4.0V
56
MICROWIRE Output Propagation Delay (t_UPD)
V_CC ≥ 4.0V
Input Pulse Width (Note 8)
DC
µs
DC
µs
DC
µs
DC
µs
ns
ns
ns
ns
0.7
µs
1.75
µs
1
µs
2.5
µs
ns
ns
220
ns
Interrupt Input High Time
Interrupt Input Low Time
Timer 1, 2, 3 Input High Time
Timer 1, 2, 3 Input Low Time
Reset Pulse Width
1.0
t_c
1.0
t_c
1.0
t_c
1.0
t_c
1.0
µs
Note 2: t_c = Instruction Cycle Time
Note 3: Maximum rate of voltage change must be < 0.5 V/ms.
Note 4: Supply and IDLE currents are measured with CKI driven with a square wave Oscillator, CKO driven 180˚ out of phase with CKI, inputs connected to V_CC
and outputs driven low but not connected to a load.
Note 5: The HALT mode will stop CKI from oscillating in the RC and the Crystal configurations. Measurement of I_DD HALT is done with device neither sourcing nor
sinking current; with L, C, and G0–G5 programmed as low outputs and not driving a load; all outputs programmed low and not driving a load; all inputs tied to V_CC;
clock monitor and comparator disabled. Parameter refers to HALT mode entered via setting bit 7 of the G Port data register. Part will pull up CKI during HALT in crystal
clock mode.
Note 6: Pins G6 and RESET are designed with a high voltage input network. These pins allow input voltages > V_CC and the pins will have sink current to V_CC when
biased at voltages > 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 < 14V. WARNING: Voltages in excess of 14V will cause damage to the pins. This warning ex-
cludes ESD transients.
Note 7: The output propagation delay is referenced to the end of the instruction cycle where the output change occurs.
Note 8: Parameter characterized but not tested.
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