COP888CF Datasheet, PDF (10/44 Pages) National Semiconductor (TI) – 8-Bit CMOS ROM Based Microcontrollers with 4k Memory and A/D Converter

AC Electrical Characteristics 888CF:
−40˚C ≤ T_A ≤ +85˚C unless otherwise specified
Parameter
Conditions
Instruction Cycle Time (t_c)
Crystal, Resonator
R/C Oscillator
Inputs
4V ≤ V_CC ≤ 6V
2.5V ≤ V_CC < 4V
4V ≤ V_CC ≤ 6V
2.5V ≤ V_CC < 4V
t_SETUP
t_HOLD
Output Propagation Delay (Note 14)
t_PD1, t_PD0
SO, SK
All Others
MICROWIRE Setup Time (t_UWS)
MICROWIRE Hold Time (t_UWH)
MICROWIRE Output Propagation Delay (t_UPD)
Input Pulse Width
4V ≤ V_CC ≤ 6V
2.5V ≤ V_CC < 4V
4V ≤ V_CC ≤ 6V
2.5V ≤ V_CC < 4V
R_L = 2.2k, C_L = 100 pF
4V ≤ V_CC ≤ 6V
2.5V ≤ V_CC < 4V
4V ≤ V_CC ≤ 6V
2.5V ≤ V_CC < 4V
Interrupt Input High Time
Interrupt Input Low Time
Timer Input High Time
Min
Typ
1
2.5
3
7.5
200
500
60
150
20
56
1
1
1
Timer Input Low Time
1
Reset Pulse Width
1
Note 14: The output propagation delay is referenced to end of the instruction cycle where the output change occurs.
Max
DC
DC
DC
DC
0.7
1.75
1
2.5
220
Units
µs
µs
µs
µs
ns
ns
ns
ns
µs
µs
µs
µs
ns
ns
ns
t_c
t_c
t_c
t_c
µs
A/D Converter Specifications
V_CC = 5V ±10% (V_SS − 0.050V) ≤ Any Input ≤ (V_CC + 0.050V)
Parameter
Conditions
Resolution
Reference Voltage Input
AGND = 0V
Absolute Accuracy
Non-Linearity
V_REF = V_CC
V_REF = V_CC
Deviation from the
Best Straight Line
Differential Non-Linearity
Input Reference Resistance
V_REF = V_CC
Common Mode Input Range (Note 18)
DC Common Mode Error
Off Channel Leakage Current
On Channel Leakage Current
A/D Clock Frequency (Note 16)
Conversion Time (Note 15)
Note 15: Conversion Time includes sample and hold time.
Note 16: See Prescaler description.
Min
Typ
3
1.6
AGND
1
1
0.1
12
Max
8
V_CC
±1
±¹â„2
±¹â„2
4.8
V_REF
±¹â„4
1.67
Units
Bits
V
LSB
LSB
LSB
kΩ
V
LSB
µA
µA
MHz
A/D Clock
Cycles
www.national.com
10