AT89C51CC03U-RDTIM datasheet(161/183 Pages) ATMEL

161 / 183 page

161

AT89C51CC03

4182B–CAN–09/03

Notes:

1. Operating ICC is measured with all output pins disconnected; XTAL1 driven with

CLCH, TCHCL = 5 ns (see Figure 77.), VIL = VSS + 0.5V,

IH = VCC - 0.5V; XTAL2 N.C.; EA = RST = Port 0 = VCC. ICC would be slightly higher

if a crystal oscillator used (see Figure 74.).

2. Idle I

CC is measured with all output pins disconnected; XTAL1 driven with TCLCH,

CHCL = 5 ns, VIL = VSS + 0.5V, VIH = VCC - 0.5V; XTAL2 N.C; Port 0 = VCC; EA = RST

= V

SS (see Figure 75.).

3. Power-down I

CC is measured with all output pins disconnected; EA = VCC, PORT 0 =

CC; XTAL2 NC.; RST = VSS (see Figure 76.). In addition, the WDT must be inactive

and the POF flag must be set.

4. Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be super-

imposed 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 operation. In the worst cases (capacitive loading 100pF), the

noise pulse on the ALE line may exceed 0.45V with maxi V

OL peak 0.6V. A Schmitt

Trigger use is not necessary.

5. Typicals are based on a limited number of samples and are not guaranteed. The val-

ues listed are at room temperature.

6. Under steady state (non-transient) conditions, I

OL must be externally limited as fol-

lows:

Maximum I

OL per port pin: 10 mA

Maximum I

OL per 8-bit port:

Port 0: 26 mA

Ports 1, 2, 3 and 4: 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.

Figure 74. I

CC Test Condition, Active Mode

Power Supply Current

CCOP = TBD

CCIDLE = TBD

Vcc = 5.5V(1)(2)

Table 115. DC Parameters in Standard Voltage (Continued)

Symbol Parameter

Min

Typ(5)

Max

Unit

Test Conditions

VCC

ICC

(NC)

CLOCK

SIGNAL

VCC

All other pins are disconnected.

RST

XTAL2

XTAL1

AT89C51CC03U-RDTIM Datasheet(PDF) 161 Page - ATMEL Corporation

AT89C51CC03U-RDTIM Datasheet(HTML) 161 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 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL