AT80C51RB2-3CSIM datasheet(67/83 Pages) ATMEL

67 / 83 page

AT80C51RD2/AT83C51Rx2

4113B–8051–03/05

DC Parameters for Low

Voltage

TA = 0

°C to +70°C; V

SS = 0V; VCC = 2.7V to 3.6V; F = 10 to 40 MHz

TA = -40

°C to +85°C; V

SS = 0V; VCC = 2.7V to 3.6V; F = 10 to 40 MHz

Notes:

1. Operating I

CC is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns (see Figure 26.),

IL = VSS + 0.5V,

VIH = VCC - 0.5V; XTAL2 N.C.; EA = RST = Port 0 = VCC. ICC would be slightly higher if a crystal oscillator used (see Figure

23).

2. Idle I

CC is measured with all output pins disconnected; XTAL1 driven with TCLCH, TCHCL = 5 ns, VIL = VSS + 0.5V,

VIH = VCC - 0.5V; XTAL2 N.C; Port 0 = VCC; EA = RST = VSS (see Figure 24).

3. Power-down I

CC is measured with all output pins disconnected; EA = VSS, PORT 0 = VCC; XTAL2 NC.; RST = VSS (see Fig-

ure 25).

4. Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the VOLs 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 operation. In the worst cases (capacitive loading 100pF), the noise pulse on the ALE line may exceed

0.45V with maxi VOL peak 0.6V. A Schmitt Trigger use is not necessary.

5. Typical are based on a limited number of samples and are not guaranteed. The values listed are at room temperature and

5V.

6. Under steady state (non-transient) conditions, IOL must be externally limited as follows:

Maximum I

OL per port pin: 10 mA

Maximum I

OL per 8-bit port:

Port 0: 26 mA

Ports 1, 2 and 3: 15 mA

Maximum total I

OL for all output pins: 71 mA

If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater

than the listed test conditions.

7. For other values, please contact your sales office.

Symbol

Parameter

Min

Typ

Max

Unit

Test Conditions

Input Low Voltage

-0.5

0.2 V

CC - 0.1

Input High Voltage except RST, XTAL1

0.2 V

CC + 0.9

CC + 0.5

IH1

Input High Voltage, RST, XTAL1

0.7 V

CC + 0.5

Output Low Voltage, ports 1, 2, 3, 4(6)

0.45

OL = 0.8 mA

(4)

OL1

Output Low Voltage, port 0, ALE, PSEN (6)

0.45

OL = 1.6 mA

(4)

Output High Voltage, ports 1, 2, 3, 4

0.9 V

OH = -10 µA

OH1

Output High Voltage, port 0, ALE, PSEN

0.9 V

OH = -40 µA

Logical 0 Input Current ports 1, 2, 3, 4

-50

µAV

IN = 0.45V

Input Leakage Current

±10

µA

0.45V < V

IN < VCC

Logical 1 to 0 Transition Current, ports 1, 2, 3,

-650

µAV

IN = 2.0V

RST

RST Pulldown Resistor

200 (5)

250

Ω

CIO

Capacitance of I/O Buffer

Fc = 3 MHz

TA = 25

°C

Power-down Current

10 (5)

µA

CC = 2.7V to

3.6V

(3)

CCOP

Power Supply Current on normal mode

0.31 x Frequency (MHz) + 4

CC = 3.6V

(1)

CCIDLE

Power Supply Current on idle mode

0.2 x Frequency (MHz) + 4

CC = 3.6V

(2)

AT80C51RB2-3CSIM bảng dữ liệu(PDF) 67 Page - ATMEL Corporation

AT80C51RB2-3CSIM bảng dữ liệu(HTML) 67 Page - ATMEL Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83

bảng dữ liệu tải về

Link URL