83C145 Datasheet, PDF (35/40 Pages) NXP Semiconductors – Microcontrollers for TV and video MTV

Philips Semiconductors
Microcontrollers for TV and video (MTV)
Product specification
83C145; 83C845
83C055; 87C055
19 DC CHARACTERISTICS
V_DD = 5 V ±10% T_amb = 0 to +70 °C; all voltages with respect to V_SS; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP.
MAX.
UNIT
Supply
V_DD
operating supply voltage
I_DD
operating supply current
V_IL
LOW level input voltage
V_IL1
LOW level input voltage;
VSYNC and HSYNC
V_DD = 5.5 V; note 1
V_IH
HIGH level input voltage;
XTAL, VCLK1 and RST
V_IH1
HIGH level input voltage; P1.2 to P1.0,
P3.6 to P3.5 and P3.3 to P3.1
V_IH2
HIGH level input voltage;
P1.3, P3.7,P3.4 and P3.0
V_IH3
HIGH level input voltage; VSYNC and
HSYNC
V_IH − V_DD HIGH level input voltage with respect
to V_DD; Port 0, P1.3, P3.7, P3.4 and
P3.0
note 2
V_OL1
LOW level output voltage; P2.7 to P2.0 I_OL = 10 mA; note 3
and P3.6 to P3.5
V_OL2
LOW level output voltage;
TDAC and PWM0 to PWM7
I_OL = 700 µA; note 4
V_OL3
LOW level output voltage; all other
outputs
I_OL = 1.6 mA
V_OH
HIGH level output voltage;
I_OH = −60 µA
Port 1, VID2 to VID0, VCTRL and BF
R_RST
C_IO
HYS
Reset (RST) pull-down resistor
Pin capacitance; except P0.0 and P0.7 test freq. = 1 MHz;
T_amb = 25 °C; note 5
Hysteresis; VSYNC and HSYNC
4.5
5.0
−
−
−0.5
−
−0.5
−
0.7V_DD
−
0.2V_DD + 0.9 −
0.2V_DD + 0.9 −
0.67V_DD
−
0.7V_DD
−
−
−
−
−
−
−
2.4
−
50
−
−
−
0.8
−
5.5
V
30
mA
0.2V_DD − 0.1 V
0.15V_DD
V
V_DD + 0.5 V
V_DD + 0.5 V
12.6
V
V_DD + 0.5 V
V_DD + 0.5 V
0.5
V
0.5
V
0.45
V
−
V
300
kΩ
10
pF
−
V
Notes
1. I_DD measured with OSD block initialized and RST remaining LOW.
2. This maximum applies at all times, including during power switching, and must be accounted for in power supply
design. During a Power-on process, the +12 V source used for external pull-up resistors should not precede the V_DD
of the 83C055 up their respective voltage ramps by more than this margin, nor, during a Power-down process, should
V_DD precede +12 V down their respective voltage ramps by more than this margin.
3. No more than 6 (any 6) of these 10 high current outputs may be used at the V_OL1 (I_OL = 10 mA) specification.
The other 4 should comply with the V_OL3 specification (I_OL = 1.6 mA).
4. The specified current rating applies when any of these pins is used as a Pulse Width Modulated (PWM) output.
For use as a port output, the rating is as given subsequently.
5. The capacitance of pins P0.0 and P0.7 for the 87C055 exceeds 10 pF; for P0.0 this is maximum 40 pF, while for P0.7
it is maximum 20 pF.
1996 Mar 22
35