AT89C51RC2-RLTUL Atmel, AT89C51RC2-RLTUL Datasheet - Page 109

• Manufacturer Part Number: AT89C51RC2-RLTUL
• Description: IC 8051 MCU FLASH 32K 44VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51RC2-RLTUL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 1280 B
• Interface Type: UART, SPI
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-11 - KIT STARTER FOR AT89C51RX2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

DC Parameters for Low
Voltage
T
T
Notes:
4180E–8051–10/06
A
A
Symbol
= 0°C to +70°C; V
= -40°C to +85°C; V
I
I
I
CCIDLE
CCProg
V
R
V
V
CCOP
V
V
C
V
V
I
I
I
I
OH1
RST
PD
OL1
TL
IH1
OL
OH
IL
LI
IH
IO
IL
1. Operating I
2. Idle I
3. Power Down I
4. Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the V
5. Typical are based on a limited number of samples and are not guaranteed. The values listed are at room temperature and
6. Under steady state (non-transient) conditions, I
Parameter
Input Low Voltage
Input High Voltage except RST, XTAL1
Input High Voltage, RST, XTAL1
Output Low Voltage, ports 1, 2, 3, 4
Output Low Voltage, port 0, ALE, PSEN
Output High Voltage, ports 1, 2, 3, 4
Output High Voltage, port 0, ALE, PSEN
Logical 0 Input Current ports 1, 2, 3, 4
Input Leakage Current for P0 only
Logical 1 to 0 Transition Current, ports 1, 2, 3,
RST Pulldown Resistor
Capacitance of I/O Buffer
Power Down Current
Power Supply Current on normal mode
Power Supply Current on idle mode
Power Supply Current during flash Write / Erase
V
V
46).
0.5V; XTAL2 N.C; Port 0 = V
ure 48).
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
5V.
Maximum I
Maximum I
Port 0: 26 mA
Ports 1, 2 and 3: 15 mA
Maximum total I
SS
IH
= V
+ 0.5V,
CC
CC
is measured with all output pins disconnected; XTAL1 driven with T
- 0.5V; XTAL2 N.C.; EA = RST = Port 0 = V
SS
OL
OL
CC
SS
= 0V; V
per port pin: 10 mA
per 8-bit port:
is measured with all output pins disconnected; XTAL1 driven with T
CC
= 0V; V
OL
is measured with all output pins disconnected; EA = V
OL
for all output pins: 71 mA
peak 0.6V. A Schmitt Trigger use is not necessary.
CC
CC
= 2.7V to 3.6V; F = 0to 40 MHz
= 2.7V to 3.6V; F = 0 to 40 MHz
CC
(6)
; EA = RST = V
(6)
0.2 V
SS
0.7 V
0.9 V
0.9 V
OL
Min
-0.5
CC
50
(see Figure 47).
must be externally limited as follows:
+ 0.9
CC
CC
CC
CC
. I
Frequency
CC
(MHz) +
200
10
0.4 x
Typ
would be slightly higher if a crystal oscillator used (see Figure
20
(5)
(5)
0.4 x Frequency (MHz) + 5
0.3 x Frequency (MHz) + 5
SS
, PORT 0 = V
CLCH
0.2 V
V
V
, T
CC
CC
Max
0.45
0.45
-650
±10
250
-50
10
50
CC
CLCH
CHCL
+ 0.5
+ 0.5
AT89C51RB2/RC2
- 0.1
, T
CC
= 5 ns, V
CHCL
; XTAL2 NC.; RST = V
= 5 ns (see Figure 49.), V
IL
Unit
= V
mA
mA
mA
μA
μA
μA
kΩ
μA
pF
V
V
V
V
V
V
V
OL
SS
s of ALE and Ports 1
Test Conditions
I
I
I
I
V
0.45V < V
V
Fc = 3 MHz
T
V
3.6V
V
V
V
+ 0.5V, V
OL
OL
OH
OH
A
IN
IN
CC
CC
CC
CC
= 25°C
= 0.8 mA
= 1.6 mA
= -10 μA
= -40 μA
= 0.45 V
= 2.0V
= 2.7V to
= 3.6 V
= 3.6 V
= 5.5V
(3)
SS
IN
IH
(see Fig-
(8)
(1)
(2)
< V
(4)
(4)
= V
CC
109
CC
IL
=
-