at89c51cc03c-slsim ATMEL Corporation, at89c51cc03c-slsim Datasheet - Page 171

• Manufacturer Part Number: at89c51cc03c-slsim
• Description: At89c51cc03 Enhanced 8-bit Mcu With Can Controller And Flash Memory
• Manufacturer: ATMEL Corporation

DC Parameters for A/D
Converter
AC Parameters
Explanation of the AC
Symbols
4182N–CAN–03/08
Figure 81. Clock Signal Waveform for I
Table 117. DC Parameters for AD Converter in Precision Conversion
Note:
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 status of that signal. The following is a list of all the characters and what
they stand for.
Example: T
T
(Load Capacitance for port 0, ALE and PSEN = 60 pF; Load Capacitance for all other
outputs = 60 pF.)
Table 118, Table 121 and Table 124 give the description of each AC symbols.
Table 119, Table 123 and Table 125 give for each range the AC parameter.
Table 120, Table 123 and Table 126 give the frequency derating formula of the AC
parameter for each speed range description. To calculate each AC symbols: Take the x
value and use this value in the formula.
Example: T
x = 30 ns
T = 50 ns
T
Symbol Parameter
A
CCIV
Vref
T
AVin
Rref
DNL
= -40°C to +85°C; V
Cai
Rai
INL
OE
LLPL
(3)
= 4T - x = 170 ns
= Time for ALE Low to PSEN Low.
1. Typicals are based on a limited number of samples and are not guaranteed.
2. For temperatures higher than 85° C, use standard conversion (8-bit only) and
3. V
Analog input voltage
Resistance between Vref and Vss
Reference voltage
Analog input Capacitance
Analog input Resistor
Integral non linearity
Differential non linearity
Offset error
PRS > 2.
AVLL
LLIV
REF
and 20 MHz, Standard clock.
= Time for Address Valid to ALE Low.
< V
CC
+ 0.2V for temperatures higher than 85.
SS
V
CC
= 0V; V
T
-0.5V
0.45V
CHCL
T
CLCH
CC
= T
= 3V to 5.5V; F = 0 to 40 MHz.
CHCL
Vss- 0.2
CC
Min
2.40
12
-2
= 5ns.
Tests in Active and Idle Modes
T
CLCH
Typ
0.7V
0.2V
0.5
16
60
(1),(2)
1
CC
CC
-0.1
Vref
Max
3.00
400
24
2
3
1
2
+ 0.2
Unit
kΩ
pF During sampling
lsb
lsb
lsb
Ω
V
V
During sampling
Automotive
Test Conditions
171