atf1502be ATMEL Corporation, atf1502be Datasheet - Page 2

• Manufacturer Part Number: atf1502be
• Description: High- Performance Cpld
• Manufacturer: ATMEL Corporation

Enhanced Features
1. Description
2
ATF1502BE
•
•
•
•
•
•
•
•
•
The ATF1502BE is a high-performance, high-density complex programmable logic device
(CPLD) that utilizes Atmel’s proven electrically-erasable technology. With 32 logic macrocells
and up to 36 inputs, it easily integrates logic from several TTL, SSI, MSI, LSI and classic PLDs.
The ATF1502BE’s enhanced routing switch matrices increase usable gate count and the odds
of successful pin-locked design modifications.
The ATF1502BE has up to 32 bi-directional I/O pins and four dedicated input pins, depending on
the type of device package selected. Each dedicated pin can also serve as a global control sig-
nal, register clock, register reset or output enable. Each of these control signals can be selected
for use individually within each macrocell.
TQFP Package.
Figure 1-1.
Improved Connectivity (Additional Feedback Routing, Alternate Input Routing)
Output Enable Product Terms
Outputs Can Be Configured for High or Low Drive
Combinatorial Output with Registered Feedback and Vice Versa within each Macrocell
Three Global Clock Pins
Fast Registered Input from Product Term
Pull-up Option on TMS and TDI JTAG Pins
OTF (On-the-Fly) Mode
DRA (Direct Reconfiguration Access)
44-lead TQFP Top View
VCCIOA
TMS/I/O
PD1/I/O
I/O/TDI
GND
I/O
I/O
I/O
I/O
I/O
I/O
1
2
3
4
5
6
7
8
9
10
11
Figure 1-1
shows the pin assignments for 44-lead
33
32
31
30
29
28
27
26
25
24
23
I/O
I/O/TDO
I/O
I/O
VCCIOB
I/O
I/O
I/O/TCK
I/O
GND
I/O
3492A–PLD–12/05