AT89C5122D-PSTUM Atmel, AT89C5122D-PSTUM Datasheet - Page 112
AT89C5122D-PSTUM
Manufacturer Part Number
AT89C5122D-PSTUM
Description
IC 8051 MCU FLASH 32K 64QFN
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C5122D-PSTUM.pdf
(208 pages)
Specifications of AT89C5122D-PSTUM
Core Processor
8051
Core Size
8-Bit
Speed
48MHz
Connectivity
SmartCard, SPI, UART/USART, USB
Peripherals
LED, POR, WDT
Number Of I /o
46
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
768 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-QFN
For Use With
AT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-03 - KIT STARTER FOR MCU AT8XC5122/23
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
- Current page: 112 of 208
- Download datasheet (3Mb)
Detach Simulation
112
AT83R5122, AT8xC5122/23
In order to be re-enumerated by the Host, the AT83R5122, AT8xC5122/23 has the pos-
sibility to simulate a DETACH-ATTACH of the USB bus.
The V
D+ pull-up as shown in Figure 60. This output can be put in high-impedance when the
DETACH bit is set to 1 in the USBCON register. Maintaining this output in high imped-
ance for more than 3 μs will simulate the disconnection of the device. When resetting
the DETACH bit, an ATTACH is then simulated. The USB controller should be enabled
to use this feature.
Figure 60. Example of V
Figure 61. Disconnect Timing
V
IHZ(min)
V
V
REF
SS
IL
output voltage is between 3.0V and 3.6V. This output can be connected to the
D+
D-
V
Disconnected
REF
D-
D+
Device
REF
R2
R3
Connection
R1
>= 2,5 s
1
2
3
4
USB-B Connector
D-
D+
GND
VCC
Disconnect
Detected
4202F–SCR–07/2008
Related parts for AT89C5122D-PSTUM
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC 8051 MCU 32K CRAM USB 64-VQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU W/SMART CARD 64VQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K 64VQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU 80C51 W/SMART CARD 64VQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC 8051 MCU FLASH 32K 28PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
Part Number:
Description:
KIT STARTER FOR MCU AT8XC5122/23
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 44PLCC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MICRO CTRL 24MHZ 40DIP
Manufacturer:
Atmel
Datasheet: