AT89C51RB2 Atmel Corporation, AT89C51RB2 Datasheet - Page 110

• Manufacturer Part Number: AT89C51RB2
• Manufacturer: Atmel Corporation

Specifications of AT89C51RB2

• Flash (kbytes): 16 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Uart: 1
• Sram (kbytes): 1.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

110
7. For other values, please contact your sales office.
8. Icc Flash Write operation current while an on-chip flash page write is on going.
AT89C51RB2/RC2
If I
than the listed test conditions.
OL
exceeds the test condition, V
Figure 46. I
Figure 47. I
Figure 48. I
Figure 49. Clock Signal Waveform for I
OL
CLOCK
SIGNAL
may exceed the related specification. Pins are not guaranteed to sink current greater
(NC)
CC
CC
CC
CLOCK
SIGNAL
(NC)
Test Condition, Active Mode
Test Condition, Idle Mode
Test Condition, Power-down Mode
(NC)
RST
XTAL2
XTAL1
V
SS
V
RST
XTAL2
XTAL1
V
CC
V
SS
V
CC
EA
CC
T
I
P0
-0.5V
0.45V
CC
CHCL
RST
XTAL2
XTAL1
V
V
SS
EA
V
CC
P0
T
I
CC
CC
CLCH
V
V
CC
V
EA
CC
CC
= T
I
P0
V
CC
CC
CHCL
CC
V
CC
V
Tests in Active and Idle Modes
= 5ns.
CC
T
CLCH
All other pins are disconnected.
0.7V
All other pins are disconnected.
0.2V
CC
All other pins are disconnected.
CC
-0.1
4180E–8051–10/06