ATF1502AS-7AC44 Atmel, ATF1502AS-7AC44 Datasheet - Page 9
![IC CPLD 7NS 44TQFP](/photos/6/70/67042/313-44-tqfp_sml.jpg)
ATF1502AS-7AC44
Manufacturer Part Number
ATF1502AS-7AC44
Description
IC CPLD 7NS 44TQFP
Manufacturer
Atmel
Series
ATF1502AS(L)r
Datasheet
1.ATF1502ASL-25JU44.pdf
(26 pages)
Specifications of ATF1502AS-7AC44
Programmable Type
In System Programmable (min 10K program/erase cycles)
Delay Time Tpd(1) Max
7.5ns
Voltage Supply - Internal
4.75 V ~ 5.25 V
Number Of Macrocells
32
Number Of I /o
32
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
44-TQFP, 44-VQFP
Voltage
4.75 V ~ 5.25 V
Memory Type
EEPROM
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
-
Number Of Logic Elements/cells
-
Other names
ATF1502AS7AC44
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
JTAG
Boundary-scan
Cell (BSC)
Testing
BSC
Configuration
for Input and I/O
Pins (Except
JTAG TAP Pins)
BSC
Configuration
for Macrocell
0995K–PLD–6/05
The ATF1502AS contains up to 32 I/O pins and four input pins, depending on the device type
and package type selected. Each input pin and I/O pin has its own boundary-scan cell (BSC)
in order to support boundary-scan testing as described in detail by IEEE Standard 1149.1. A
typical BSC consists of three capture registers or scan registers and up to two update regis-
ters. There are two types of BSCs, one for input or I/O pin, and one for the macrocells. The
BSCs in the device are chained together through the capture registers. Input to the capture
register chain is fed in from the TDI pin while the output is directed to the TDO pin. Capture
registers are used to capture active device data signals, to shift data in and out of the device
and to load data into the update registers. Control signals are generated internally by the
JTAG TAP controller. The BSC configuration for the input and I/O pins and macrocells is
shown below.
Note:
1. The ATF1502AS has a pull-up option on TMS and TDI pins. This feature is selected as a
design option.
TDO
Q
OEJ
OUTJ
TDI
D
CLOCK
Shift
1
1
0
0
0
1
BSC for I/O Pins and Macrocells
TDI
Capture
D Q
D Q
DR
TDO
Clock
Update
D Q
D Q
DR
1
1
0
0
Mode
ATF1502AS(L)
Pin
9