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The PSD3XX family is the market's first single-chip solution for microcontroller-based applications where criteria such as fast time-to-market, small form factor, and low power consumption are essential. When combined in an 8- or 16-bit system, virtually any microcontroller (68HC11, 8031/8051, 80186, etc.) and the PSD3XX device work together to create a very powerful chip-set solution. The low-voltage PSD3XXL versions eliminate mixing and matching low voltage specifications for various discrete components. They also provide all the required control and peripheral elements needed in a microcontroller-based system with no external discrete "glue" logic required.
The PSD3XX family comes complete with simple system software development tools for interfacing the PSD3XX with a microcontroller. Hosted on an IBM PC platform or compatible, the easy to use PSDsoft software enables the designer to quickly configure the device and use it immediately.
PSD3XX standard versions are ideal for general purpose embedded control applications. PSD3XXR (SRAM-less) versions are optimized for designs that either require no on-chip SRAM or require large off-chip SRAMs for data storage. (SRAM-less versions were formerly identified by a "C1" suffix to the part number.)
PSD3XXM mask-programmable versions deliver the lowest cost PSD3XX solution. See the Masked-PSD Ordering Information chapter in this databook for the mask-programmable PSD3XXM ordering procedure.
PSD3XXL low-power versions operate down to 3.0 volts and feature standby current of only 1 A typical.
Combinations of the above versions are available. See the ordering information section at the end of this data sheet.
References in this document to PSD3XX versions include any "Non-L" products (e.g., PSD3XX, PSD3XXR, PSD3XXM and PSD3XXRM). References to PSD3XXR include any SRAM-less product (PSD3XXR, PSD3XXRM, PSD3XXRL and PSD3XXRLM). References to PSD3XXM include PSD3XXM, PSD3XXRM, PSD3XXLM, and PSD3XXRLM products. References to PSD3XXL include PSD3XXL, PSD3XXLM, PSD3XXRL and PSD3XXRLM products.
PSD311 Maximum Ratings
Symbol
Parameter
Condition
Min
Max
Unit
TSTG
Storage Temperature
CERDIP
65
+150
°C
PLASTIC
65
+125
°C
Voltage on any Pin
With Respect to GND
-0.6
+ 7
V
VPP
Programming Supply Voltage
With Respect to GND
-0.6
+14
V
VCC
Supply Voltage
With Respect to GND
0.6
+7
V
ESD Protection
>2000
V
PSD311 Features
o Single Chip Programmable Peripheral for Microcontroller-based Applications o Wide Operating Voltage Range - L-Versions: 3.0 to 5.5 volts - Others: 4.5 to 5.5 volts o 19 Individually Configurable I/O pins that can be used as - Microcontroller I/O port expansion - Programmable Address Decoder (PAD) I/O - Latched address output - Open drain or CMOS o Two Programmable Arrays (PAD A and PAD B) - Total of 40 Product Terms and up to 16 Inputs and 24 Outputs - Address Decoding up to 1 MB - Logic replacement of discrete PALs® o "No Glue" Microcontroller Chip-Set - Built-in address latches for multiplexed address/data bus - Non-multiplexed address/data bus mode - ALE and Reset (non-PSD3XXL versions) polarity programmable - Selectable modes for read and write control bus as RD/WR or R/W/E o 256K to 2 MBits of UV EPROM (2 Mbit version is SRAMless) - Configurable as 32, 64, 128 or 256K x 8 or as 16, 32, 64 or 128K x 16 - Divides into 8 equal mappable blocks for optimized mapping - Block resolution is 4K x 8 or 2K x 16 (PSD3X1) to 32K x 8 or 16K x 16 (PSD3X4R) - As fast as 70 ns EPROM access time, including input latches and PAD address decoding. o 16 Kbit Static RAM (No SRAM on PSD3XXR versions) - Configurable as 2K x 8 or as 1K x 16 - As fast as 70 ns SRAM access time, including input latches and PAD address decoding o Built-in Page Logic (PSD3X2/3X3/3X4R) - Expands the MCU address space up to sixteen 1 Mb pages o CMiser Bit - Programmable option to further reduce power consumption o Address/Data Track Mode - Enables easy Interface to Shared Resources (Mail Box SRAM) with other Microcontrollers or a Host Processor o Built-In Security - Locks the device and PAD Decoding configuration o Available in a Variety of Packaging - 44 Pin PLDCC, CLDCC, PQFP, TQFP, and CPGA o Simple Menu-Driven Software: Configure the PSD3XX on an IBM PC o PSD3XX standard versions are excellent for general purpose applications o PSD3XXR SRAMless versions result in lower cost o PSD3XXL versions (3.0 to 5.5 volt operation) eliminate mixing and matching discrete low-voltage parts o PSD3XXM mask-programmable versions are ideal for code-stable, high-volume low cost applications
PSD311 Typical Application
o Computers (Notebook and Portable PCs) - Fixed Disk Control, Modem, Imaging, Laser Printer Control o Telecommunications - Modem, Cellular Phone, Digital PBX, Digital Speech, FAX, Digital Signal Processing o Portable Industrial Equipment - Measurement Instruments, Data Recorders o Medical Instrumentation - Monitoring Equipment, Diagnostic Tools