P83C654X2FBD/CV710 NXP Semiconductors, P83C654X2FBD/CV710 Datasheet - Page 76

• Manufacturer Part Number: P83C654X2FBD/CV710
• Description: 8-bit Microcontrollers - MCU P83C654X2FBD/LQFP44/TRAYBM//CV
• Manufacturer: NXP Semiconductors

Specifications of P83C654X2FBD/CV710

• Core: 80C51
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 16 MHz
• Program Memory Size: 16 KB
• Data Ram Size: 256 B
• Operating Supply Voltage: 5 V
• Package / Case: SOT-187-2
• Mounting Style: SMD/SMT
• Interface Type: I2C, Serial
• Number Of Programmable I/os: 4
• Number Of Timers: 3
• Processor Series: 80C51
• Program Memory Type: OTP EPROM

Philips Semiconductors
2004 Apr 20
WRITE TO SBUF
INSTRUCTION
AC inputs during testing are driven at V
INPUT DATA
NOTE:
Timing measurements are made at V
OUTPUT DATA
80C51 8-bit microcontroller family
256B RAM, low voltage (2.7 to 5.5 V), low power, high speed
(30/33 MHz)
CLEAR RI
V
CC
0.45V
CLOCK
–0.5
ALE
Figure 47. AC Testing Input/Output
0
t
QVXH
0.2V
0.2V
IH
CC
CC
CC
min for a logic ‘1’ and V
+0.9
–0.1
–0.5 for a logic ‘1’ and 0.45V for a logic ‘0’.
t
1
XHDV
0
t
XLXL
VALID
V
CC
0.45V
16 kB OTP/ROM,
–0.5
t
XHQX
2
IL
max for a logic ‘0’.
Figure 45. Shift Register Mode Timing
VALID
1
Figure 46. External Clock Drive
0.2V
t
CHCL
SU00717
0.7V
t
CC
XHDX
CC
3
–0.1
VALID
2
76
t
CLCX
4
NOTE:
For timing purposes, a port is no longer floating when a 100mV change from
load voltage occurs, and begins to float when a 100mV change from the loaded
V
V
OH
t
LOAD
CLCL
VALID
/V
3
OL
t
level occurs. I
CHCX
t
V
V
CLCH
LOAD
LOAD
5
–0.1V
+0.1V
VALID
SU00009
4
OH
Figure 48. Float Waveform
P83C654X2/P87C654X2
/I
OL
20mA.
6
VALID
5
REFERENCE
TIMING
POINTS
7
VALID
6
Product data
8
V
V
VALID
SET TI
SET RI
SU00027
OH
OL
7
SU00718
+0.1V
–0.1V