83C751 Datasheet, PDF (8/24 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 2K/64 OTP/ROM, I2C, low pin count

Philips Semiconductors
80C51 8-bit microcontroller family
2K/64 OTP/ROM, I²C, low pin count
Product specification
83C751/87C751
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
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 1. External Clock Drive
SU00297
22
20
18
16
14
I_CC (mA)
12
10
8
6
4
2
MAX ACTIVE I_CC5
TYP ACTIVE I_CC5
MAX IDLE I_CC6
TYP IDLE I_CC6
4MHz
8MHz 12MHz 16MHz
FREQ
SU00298
Figure 2. I_CC vs. FREQ
Maximum I_CC values taken at V_CC max and worst case temperature.
Typical I_CC values taken at V_CC = 5.0V and 25°C.
Notes 5 and 6 refer to DC Electrical Characteristics.
1998 May 01
8