AT83C5136 Atmel Corporation, AT83C5136 Datasheet - Page 144

• Manufacturer Part Number: AT83C5136
• Manufacturer: Atmel Corporation

Specifications of AT83C5136

• Max. Operating Frequency: 32 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 512
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 4
• Mask Rom (kbytes): 32
• Watchdog: Yes

27.3
27.4
27.4.1
7683C–USB–11/07
USB DC Parameters
AC Parameters
Explanation of the AC Symbols
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
(Load Capacitance for port 0, ALE and PSEN = 60 pF; Load Capacitance for all other outputs =
60 pF.)
Table
Table
Table 27-5, Table 27-8 and
ter for each speed range description. To calculate each AC symbols. take the x value and use
this value in the formula.
A
A
= -40°C to +85°C; V
= -40°C to +85°C; V
T
27-3,
27-4,
LLPL
Symbol
AVLL
V
V
V
V
V
V
= Time for ALE Low to PSEN Low.
Table 27-6
Table 27-8
REF
IHZ
OH
OL
IH
IL
= Time for Address Valid to ALE Low.
Parameter
USB Reference Voltage
Input High Voltage for D+ and D- (Driven)
Input High Voltage for D+ and D- (Floating)
Input Low Voltage for D+ and D-
Output High Voltage for D+ and D-
Output Low Voltage for D+ and D-
1 - V
2 - D -
3 - D +
4 - GND
Receptacle
SS
SS
and
and Table 27-10 give for each range the AC parameter.
USB “B”
BUS
= 0V; V
= 0V; V
Table 27-9
Table 27-11
CC
CC
4
3
R = 1.5 kΩ
R
pad
=
=
2.7 - 3.6V
2.7 - 3.6V
= 27Ω
2
1
give the description of each AC symbols.
give the frequency derating formula of the AC parame-
R
; F = 0 to 40 MHz.
.
Rpad
Rpad
Min
3.0
2.0
2.7
2.8
0.0
V
D +
D -
REF
AT83C5134/35/36
Typ
Max
3.6
3.6
0.8
3.6
0.3
Unit
145
V
V
V
V
V
V