AT94K40AL-25DQC Atmel, AT94K40AL-25DQC Datasheet - Page 131
![IC FPSLIC 40K GATE 25MHZ 208PQFP](/photos/6/73/67311/313-208-pqfp_sml.jpg)
AT94K40AL-25DQC
Manufacturer Part Number
AT94K40AL-25DQC
Description
IC FPSLIC 40K GATE 25MHZ 208PQFP
Manufacturer
Atmel
Series
FPSLIC®r
Specifications of AT94K40AL-25DQC
Core Type
8-bit AVR
Speed
18MHz
Interface
I²C, UART
Program Sram Bytes
20K-32K
Fpga Sram
18kb
Data Sram Bytes
4K ~ 16K
Fpga Core Cells
2304
Fpga Gates
40K
Fpga Registers
2862
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 70°C
Package / Case
208-MQFP, 208-PQFP
For Use With
ATSTK594 - BOARD FPSLIC DAUGHTER FOR STK500
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT94K40AL-25DQC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 131 of 204
- Download datasheet (4Mb)
4.29.2
1138I–FPSLI–1/08
Data Reception
Figure 4-42
Figure 4-42. UART Receiver
Note:
The receiver front-end logic samples the signal on the RXDn pin at a frequency 16 times the
baud-rate. While the line is idle, one single sample of logic 0 will be interpreted as the falling
edge of a start bit, and the start bit detection sequence is initiated. Let sample 1 denote the first
zero-sample. Following the 1-to-0 transition, the receiver samples the RXDn pin at samples 8, 9
and 10. If two or more of these three samples are found to be logic 1s, the start bit is rejected as
a noise spike and the receiver starts looking for the next 1-to-0 transition.
XTAL
PE1/
PE3
1. n = 0, 1
shows a block diagram of the UART Receiver.
PIN CONTROL
GENERATOR
BAUD RATE
LOGIC
RXDn
(1)
BAUD x 16
DATA RECOVERY
LOGIC
UART CONTROL AND
STATUS REGISTER
DATA BUS
/16
(UCSRnB)
AT94KAL Series FPSLIC
STORE UDRn
BAUD
DATA BUS
RXCn
IRQ
UART CONTROL AND
STATUS REGISTER
SHIFT REGISTER
REGISTER (UDRn)
(UCSRnA)
10(11)-BIT RX
UART I/O DATA
131
Related parts for AT94K40AL-25DQC
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AT94K40AL-25BQU](/photos/6/72/67244/144l1-lqfp_tmb.jpg)
Part Number:
Description:
IC FPSLIC 40K GATE 25MHZ 144LQFP
Manufacturer:
Atmel
Datasheet:
![AT94K40AL-25DQU](/photos/6/73/67311/313-208-pqfp_tmb.jpg)
Part Number:
Description:
IC FPSLIC 40K GATE 25MHZ 208PQFP
Manufacturer:
Atmel
Datasheet:
![AT94K40AL-25BQC](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC FPSLIC 40K GATE 25MHZ 144LQFP
Manufacturer:
Atmel
Datasheet:
![AT94K40AL-25BQI](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC FPSLIC 40K GATE 25MHZ 144LQFP
Manufacturer:
Atmel
Datasheet:
![at94k40al](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
At94kal Series Field Programmable System Level Integrated Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![AT94K40AL-25DQI](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
FPGA - Field Programmable Gate Array FPSLIC 40K GATE 8B AVR 25MHZ TEMP
Manufacturer:
Atmel
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet: