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PSD402A1 Datasheet

Low Cost Field Programmable Microcontroller Peripherals

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PSD4XX
ZPSD4XX
Low Cost Field Programmable Microcontroller Peripherals
NOT FOR NEW DESIGN
FEATURES SUMMARY
s Single Supply Voltage:
– 5 V±10% for PSD4XX
– 2.7 to 5.5 V for PSD4XX-V
s Up to 1 Mbit of UV EPROM
s Up to 16 Kbit SRAM
s Input Latches
s Programmable I/O ports
s Page Logic
s Programmable Security
Figure 1. Packages
PLDCC68 (J)
CLDCC68 (L)
TQFP68 (U)
January 2002
This is information on a product still in production but not recommended for new designs.
1/3


STMicroelectronics Electronic Components Datasheet

PSD402A1 Datasheet

Low Cost Field Programmable Microcontroller Peripherals

No Preview Available !

PSD4XX Family
PSD4XX/ZPSD4XX
Field-Programmable Microcontroller Peripherals
Table of Contents
1 Introduction ...........................................................................................................................................................1
2 Key Features ........................................................................................................................................................2
3 Notation ................................................................................................................................................................3
4 Zero-Power Background .......................................................................................................................................3
5 Integrated Power ManagementTM Operation ........................................................................................................5
6 Design Flow ..........................................................................................................................................................6
7 PSD4XX Family ....................................................................................................................................................7
8 Table 2. PSD4XX Pin Descriptions......................................................................................................................8
9 The PSD4XX Architecture ..................................................................................................................................10
9.1 The ZPLD Block..........................................................................................................................................10
9.1.1 The PSD4XXA1 ZPLD Block............................................................................................................10
9.1.1.1 The DPLD ..........................................................................................................................12
9.1.1.2 The GPLD ..........................................................................................................................13
9.1.1.3 TPA Macrocell Structure ...................................................................................................13
9.1.1.4 Port B Macrocell Structure .................................................................................................17
9.1.1.5 The ZPLD Power Management..........................................................................................18
9.1.2 The PSD4XXA2 ZPLD Block............................................................................................................22
9.1.2.1 The DPLD ..........................................................................................................................24
9.1.2.2 The GPLD ..........................................................................................................................26
9.1.2.3 Port A Macrocell Structure .................................................................................................26
9.1.2.4 Port B Macrocell Structure .................................................................................................30
9.1.2.5 Port E Macrocell Structure .................................................................................................33
9.1.2.6 The ZPLD Power Management..........................................................................................34
9.2 Bus Interface...............................................................................................................................................37
9.2.1 Bus Interface Configuration ..............................................................................................................37
9.2.2 PSD4XX Interface to a Multiplexed Bus ...........................................................................................38
9.2.3 PSD4XX Interface to Non-Multiplexed Bus ......................................................................................38
9.2.4 Data Byte Enable..............................................................................................................................42
9.2.5 Optional Features .............................................................................................................................43
9.2.6 Bus Interface Examples....................................................................................................................43
9.3 I/O Ports......................................................................................................................................................48
9.3.1 Standard MCU I/O ............................................................................................................................48
9.3.2 PLD I/O ...........................................................................................................................................48
9.3.3 Address Out......................................................................................................................................49
9.3.4 Address In ........................................................................................................................................49
9.3.5 Data Port ..........................................................................................................................................49
9.3.6 Alternate Function In ........................................................................................................................49
9.3.7 Peripheral I/O ...................................................................................................................................50
9.3.8 Open Drain Outputs..........................................................................................................................50
9.3.9 Port Registers...................................................................................................................................51
9.3.10 Port A – Functionality and Structure.................................................................................................54
9.3.11 Port B – Functionality and Structure.................................................................................................54
9.3.12 Port C and Port D – Functionality and Structure ..............................................................................57
9.3.13 Port E – Functionality and Structure.................................................................................................57
9.4 Memory Block .............................................................................................................................................61
9.4.1 EPROM ............................................................................................................................................61
9.4.2 SRAM ...............................................................................................................................................61
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Part Number PSD402A1
Description Low Cost Field Programmable Microcontroller Peripherals
Maker STMicroelectronics
Total Page 30 Pages
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