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ZPSD211R-B-15M Datasheet(PDF) 7 Page - STMicroelectronics |
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ZPSD211R-B-15M Datasheet(HTML) 7 Page - STMicroelectronics |
7 / 51 page PSD211R Family 4 3.0 Key Features t Low cost programmable microcontroller peripheral t 256Kb of UV EPROM with the following features: • Configurable as 32 K x 8 • Divided into eight equally-sized mappable blocks for optimized address mapping • As fast as 70 ns access time, which includes address decoding t 19 I/O pins that can be individually configured for : • Microcontroller I/O port expansion • Programmable Address decoder (PAD) I/O • Latched address output t Two Programmable Arrays (PAD A and PAD B) replace your discrete PLD or decoder and have the following features: • Up to 13 Inputs and 24 outputs • 36 Product terms (9 for PAD A and 27 for PAD B) • Ability to decode up to 1 MB of address t Microcontroller logic that eliminates the need for external “glue logic” has the following features: • Ability to interface to multiplexed buses • Built-in address latches for multiplexed address/data bus • ALE and Reset polarity are programmable (Reset polarity not programmable on V-versions) • Multiple configurations are possible for interface to many different microcontrollers t Programmable power management with standby current as low as 1µA (V versions only) • CMiser bit—programmable option to reduce AC power consumption in memory • Turbo Bit (ZPSD only)—programmable bit to reduce AC and DC power consumption in the PADs t Built-in security locks the device and PAD decoding configuration t Wide Operating Voltage Range • V-versions: 2.7 to 5.5 volts • Others: 4.5 to 5.5 volts t Available in a variety of packaging (44-pin PLDCC, CLDCC, and PQFP) t Simple, menu-driven software (PSDsoft) allows configuration and design entry on a PC. |
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