83C752 Datasheet, PDF (15/24 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 2K/64 OTP/ROM, 5 channel 8 bit A/D, I2C, PWM, low pin count

Philips Semiconductors
80C51 8-bit microcontroller family
2K/64 OTP/ROM, 5 channel 8 bit A/D, I²C, PWM, low pin count
Product specification
83C752/87C752
AC ELECTRICAL CHARACTERISTICS
T_amb = 0°C to +70°C or –40°C to +85°C, V_CC = 5V ±10%, V_SS = 0V^{4, 8}
SYMBOL
1/t_CLCL
PARAMETER
Oscillator frequency:
External Clock (Figure 4)
t_CHCX
t_CLCX
t_CLCH
t_CHCL
High time
Low time
Rise time
Fall time
EXPLANATION OF THE AC SYMBOLS
Each timing symbol has five characters. The first character is always
‘t’ (= time). The other characters, depending on their positions,
indicate the name of a signal or the logical status of that signal.
The designations are:
C – Clock
D – Input data
H – Logic level high
L – Logic level low
Q – Output data
T – Time
V – Valid
X – No longer a valid logic level
Z – Float
12MHz CLOCK
MIN
MAX
20
20
20
20
V_CC –0.5
0.45V
0.2 V_CC + 0.9
0.2 V_CC – 0.1
t_CLCX
t_CHCL
t_CLCL
t_CHCX
t_CLCH
Figure 4. External Clock Drive
V_CC –0.5
0.45V
0.2 V_CC + 0.9
0.2 V_CC – 0.1
Figure 5. AC Testing Input/Output
VARIABLE CLOCK
MIN
MAX
3.5
12
3.5
16
20
20
20
20
UNIT
MHz
MHz
ns
ns
ns
ns
SU00297
SU00307
1998 May 01
15