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PDF ZPSD211R Data sheet ( Hoja de datos )
| Número de pieza | ZPSD211R | |
| Descripción | Low Cost Field Programmable Microcontroller Peripherals | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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PSD211R
ZPSD211R, ZPSD211RV
Low Cost Field Programmable Microcontroller Peripherals
FEATURES SUMMARY
s Single Supply Voltage:
– 5 V±10% for PSD211R and ZPSD211R
– 2.7 to 5.5 V for ZPSD211RV
s Up to 256 Kbit of EPROM
s Input Latches
s Programmable I/O ports
s Programmable Security
Figure 1. Packages
PLDCC44 (J)
CLDCC44 (L)
PQFP44 (M)
January 2002
1/3
1 page  
PSD211R Family
1.0
Introduction
(Cont.)
2.0
Notation
The PSD211R I/O ports can be used for:
• Standard I/O ports
• Programmable chip select outputs
• Address inputs
• Demultiplexed address outputs.
Implementing your design has never been easier than with PSDsoft—WSI’s software
development suite. Using PSDsoft, you can do the following:
• Configure your PSD211R to work with virtually any 8-bit microcontroller
• Specify what you want implemented in the programmable logic using a high-level
Hardware Description Language (HDL)
• Simulate your design
• Download your design to the part using a programmer.
Throughout this data sheet, references are made to the PSD211R. In most cases, these
references also cover the ZPSD211R and ZPSD211RV products. Exceptions will be noted.
Also, references to the ZPSD211R will also cover the low-voltage ZPSD211RV. (Again,
exceptions will be noted.) Use the following table to determine what references cover which
product versions:
Reference
PSD211R or PSD
PSD211R only
Non-ZPSD
ZPSD versions only
Non-V versions
V versions only or 3 V part only or
ZPSD211RV only
PSD211R
X
X
X
X
ZPSD211R ZPSD211RV
XX
XX
X
X
2
5 Page 
PSD211R Family
Table 1.
PSD211R Pin
Descriptions
(cont.)
Name Type
Description
PC0
PC1
PC2
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
A8
A9
A10
A11
A12
A13
A14
A15
GND
VCC
These pins make up Port C. These port pins are configurable, and
can have the following functions (see Figure 7):
1. PAD input—when configured as an input, a bit individually
becomes an address or a logic input, depending on your PSDsoft
I/O design file. When declared as an address, the bits are latched
with ALE/AS.
2. PAD output—when configured as an output (i.e. there is an
equation written for it in your PSDsoft design file), there is one
product term available to it.
These pins are the multiplexed, low-order address/data byte
(AD0-AD7). As inputs, address information is latched by the ALE/AS
I/O signal and used internally by the PSD. The pins also serve as MCU
data bus inputs or outputs, depending on the MCU control signals
(RD, WR, etc.).
I/O These pins are the high-order address inputs (A8-A15).
P Ground Pin
P Supply voltage input.
Legend: The Type column abbreviations are: I = input only; I/O = input/output; P = power.
8
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ZPSD211R.PDF ] | |
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