80C31 Datasheet, PDF (11/30 Pages) NXP Semiconductors – CMOS single-chip 8-bit microcontrollers

Philips Semiconductors
CMOS single-chip 8-bit microcontrollers
Product specification
80C31/80C51/87C51
DC ELECTRICAL CHARACTERISTICS
T_amb = 0°C to +70°C or –40°C to +85°C, V_CC = 5V ±20%, V_SS = 0V (PCB80C31/51 and PCF80C31/51) (12, 16, and 24MHz versions)
T_amb = 0°C to +70°C or –40°C to +85°C, V_CC = 5V ±10%, V_SS = 0V (87C51 12, 16, and 24MHz versions) (PCB80C31/51 33MHz version);
For SC87C51 (33MHz only) T_amb = 0°C to +70°C, V_CC = 5V ±5%
TEST
LIMITS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYPICAL¹
MAX
UNIT
V_IL
V_IL1
V_IH
V_IH1
V_OL
V_OL1
V_OH
Input low voltage, except EA⁷
Input low voltage to EA⁷
Input high voltage, except XTAL1, RST⁷
Input high voltage, XTAL1, RST⁷
Output low voltage, ports 1, 2, 3¹¹
Output low voltage, port 0, ALE, PSEN¹¹
Output high voltage, ports 1, 2, 3, ALE, PSEN³
I_OL = 1.6mA²
I_OL = 3.2mA²
I_OH = –60µA,
I_OH = –25µA
I_OH = –10µA
–0.5
0
0.2V_CC+0.9
0.7V_CC
2.4
0.75V_CC
0.9V_CC
0.2V_CC–0.1 V
0.2V_CC–0.3 V
V_CC+0.5
V
V_CC+0.5
V
0.45
V
0.45
V
V
V
V
V_OH1
Output high voltage (port 0 in external bus mode)
I_OH = –800µA,
2.4
V
I_OH = –300µA
0.75V_CC
V
I_OH = –80µA
0.9V_CC
V
I_IL
Logical 0 input current, ports 1, 2, 3⁷
I_TL
Logical 1-to-0 transition current, ports 1, 2, 3⁷
V_IN = 0.45V
See note 4
–50
µA
–650
µA
I_LI
Input leakage current, port 0
V_IN = V_IL or V_IH
I_CC
Power supply current:⁷
Active mode @ 12MHz⁸ (Philips)
See note 6
Active mode @ 12MHz⁵ (Philips North America)
Idle mode @ 12MHz⁹ (Philips)
Idle mode @ 12MHz (Philips North America)
Power-down mode¹⁰ (Philips and
Philips North America)
±10
µA
18
mA
11.5
19
mA
4.4
mA
1.3
4
mA
3
50
µA
R_RST
Internal reset pull-down resistor
(Philips North America)
(Philips)
50
300
kΩ
50
150
kΩ
C_IO
Pin capacitance¹²
10
pF
NOTES:
1. Typical ratings are not guaranteed. The values listed are at room temperature, 5V.
2. Capacitive loading on ports 0 and 2 may cause spurious noise to be superimposed on the V_OLs of ALE and ports 1 and 3. The noise is due
to external bus capacitance discharging into the port 0 and port 2 pins when these pins make 1-to-0 transitions during bus operations. In the
worst cases (capacitive loading > 100pF), the noise pulse on the ALE pin may exceed 0.8V. In such cases, it may be desirable to qualify
ALE with a Schmitt Trigger, or use an address latch with a Schmitt Trigger STROBE input. I_OL can exceed these conditions provided that no
single output sinks more than 5mA and no more than two outputs exceed the test conditions.
3. Capacitive loading on ports 0 and 2 may cause the V_OH on ALE and PSEN to momentarily fall below the 0.9V_CC specification when the
address bits are stabilizing.
4. Pins of ports 1, 2 and 3 source a transition current when they are being externally driven from 1 to 0. The transition current reaches its
maximum value when V_IN is approximately 2V.
5. I_CCMAX at other frequencies (for Philips North America parts) is given by: Active mode: I_CCMAX = 1.43 X FREQ + 1.90;
Idle mode: I_CCMAX = 0.14 X FREQ +2.31, where FREQ is the external oscillator frequency in MHz. I_CCMAX is given in mA. See Figure 8.
6. See Figures 9 through 12 for I_CC test conditions.
7. For Philips North America parts when T_amb = –40°C to +85°C or Philips parts when T_amb = –40°C to +125°C, see DC Electrical
Characteristics table on previous page.
8. The operating supply current is measured with all output pins disconnected; XTAL1 driven with t_r = t_f = 10ns; V_IL = V_SS + 0.5V;
V_IH = V_CC – 0.5V; XTAL2 not connected; EA = RST = Port 0 = V_CC.
9. The idle mode supply current is measured with all output pins disconnected; XTAL1 driven with t_r = t_f = 10ns; V_IL = V_SS + 0.5V;
V_IH = V_CC – 0.5V; XTAL2 not connected; EA = Port 0 = V_CC; RST = V_SS.
10. The power-down current is measured with all output pins disconnected, XTAL2 not connected, EA = Port 0 = V_CC; RST = V_SS.
11. Under steady state (non-transient) conditions, I_OL must be externally limited as follows:
Maximum I_OL per port pin:
15mA
Maximum I_OL per 8-bit port:
26mA
Maximum I_OL total for all outputs:
67mA
If I_OL exceeds the test condition, V_OL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed
test conditions.
12. Pin capacitance for the ceramic DIP package is 15pF maximum.
1996 Aug 16
11