PSD835G2V-12U STMicroelectronics, PSD835G2V-12U Datasheet - Page 57
PSD835G2V-12U
Manufacturer Part Number
PSD835G2V-12U
Description
Manufacturer
STMicroelectronics
Datasheet
1.PSD835G2V-12U.pdf
(120 pages)
Specifications of PSD835G2V-12U
Operating Temperature (max)
70C
Operating Temperature (min)
0C
Operating Temperature Classification
Commercial
Package Type
TQFP
Mounting
Surface Mount
Pin Count
80
Lead Free Status / Rohs Status
Compliant
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PSD835G2V
15.3
Complex PLD (CPLD)
The CPLD can be used to implement system logic functions, such as loadable counters and
shift registers, system mailboxes, handshaking protocols, state machines, and random logic.
The CPLD can also be used to generate three External Chip Select (ECS0-ECS2), routed to
port D.
Although External Chip Select (ECS0-ECS2) can be produced by any Output macrocell
(OMC), these three External Chip Select (ECS0-ECS2) on port D do not consume any
output macrocells (OMC).
As shown in
●
●
●
●
●
●
Each of the blocks are described in the sections that follow.
The input macrocells (IMC) and output macrocells (OMC) are connected to the PSD internal
data bus and can be directly accessed by the MCU. This enables the MCU software to load
data into the output macrocells (OMC) or read data from both the Input and output
macrocells (IMC and OMC).
This feature allows efficient implementation of system logic and eliminates the need to
connect the data bus to the AND Array as required in most standard PLD macrocell
architectures.
24 input macrocells (IMC)
16 output macrocells (OMC)
Macrocell Allocator
Product Term Allocator
AND Array capable of generating up to 137 product terms
Four I/O ports.
Figure
12, the CPLD has the following blocks:
Doc ID 10585 Rev 3
57/120
PLDs
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