AT87C51RB2-SLSUL Atmel, AT87C51RB2-SLSUL Datasheet - Page 62
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AT87C51RB2-SLSUL
Manufacturer Part Number
AT87C51RB2-SLSUL
Description
IC 8051 MCU 16K OTP 30MHZ 44PLCC
Manufacturer
Atmel
Series
87Cr
Datasheet
1.TS87C51RB2-VIA.pdf
(86 pages)
Specifications of AT87C51RB2-SLSUL
Core Processor
8051
Core Size
8-Bit
Speed
30/20MHz
Connectivity
UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
OTP
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
11.5
11.5.1
62
AC Parameters
AT/TS8xC51Rx2
Explanation of the AC Symbols
Figure 11-3. I
Figure 11-4. I
Figure 11-5. Clock Signal Waveform for I
Each timing symbol has 5 characters. The first character is always a “T” (stands for time). The
other characters, depending on their positions, stand for the name of a signal or the logical sta-
tus of that signal. The following is a list of all the characters and what they stand for.
Example:T
T
T
ranges.
A
A
= 0 to +70°C (commercial temperature range); V
= -40°C to +85°C (industrial temperature range); V
Reset = Vss after a high pulse
during at least 24 clock cycles
T
LLPL
Reset = Vss after a high pulse
during at least 24 clock cycles
AVLL
= Time for ALE Low to PSEN Low.
V
CC
CC
= Time for Address Valid to ALE Low.
CC
T
-0.5V
CLOCK
SIGNAL
0.45V
CHCL
Test Condition, Idle Mode
Test Condition, Power-Down Mode
(NC)
T
CLCH
(NC)
= T
RST
XTAL2
XTAL1
V
CHCL
SS
RST
XTAL2
XTAL1
V
= 5ns.
SS
V
T
EA
CC
CLCH
I
P0
CC
V
EA
CC
V
P0
I
CC
0.7V
CC
0.2V
V
CC
V
CC
CC
CC
CC
V
CC
Tests in Active and Idle Modes
-0.1
SS
= 0 V; V
SS
All other pins are disconnected.
All other pins are disconnected.
= 0 V; V
CC
= 5 V ± 10%; -M and -V ranges.
CC
= 5 V ± 10%; -M and -V
4188F–8051–01/08