DSM2180F3 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

DSM2180F3

DSM (Digital Signal Processor System Memory) for analog devices ADSP-218X family (5 V supply)

STMicroelectronics 

1 2 3 4 5 6 7 8 9 10 Next

DSM2180F3

DSM (Digital Signal Processor System Memory)

for analog devices ADSP-218X family (5 V supply)

NOT FOR NEW DESIGN

FEATURES SUMMARY

■ Glueless Connection to DSP

Figure 1. Packages

– Easily add memory, logic, and I/O to DSP

■ 128K Byte Flash Memory

– For Bootloading and/or Data Overlay Memory

– Programmable Decoding and Paging Logic

allows accessing Flash memory as Byte DMA

(BDMA) and as External Data Overlay mem-

) ory

t(s – Rapidly access Flash memory with BDMA for

c booting and loading internal DSP Overlay

u memory. Alternatively access the same Flash

d memory as External Data Overlay memory to

ro efficiently write Flash memory with code up-

P dates and data, a byte at a time with no DMA

te setup overhead

le – Individual 16K Byte Flash memory sectors

o match size of DSP External Data Overlay

s window for efficient data management. Inte-

b grated page logic provides easy DSP access

- O to all 128K Bytes.

) – DSM connects to lower byte of 16-bit DSP

t(s data bus. Byte-wide accesses to 8-bit BDMA

c space. Half-word accesses to 16-bit Data

u Memory Overlay and 16-bit I/O Mem space.

rod ■ 5V Devices (±10%)

■ Up to 16 Multifunction I/O Pins

te P – Increase total DSP system I/O capability

le – I/O controlled by DSP software or PLD logic

o – 8mA I/O pin drive at 5 Vcc

bs ■ General purpose PLD

O – Over 3,000 Gates of PLD with 16 macro cells

PQFP52 (T)

PLCC52 (K)

■ In-System Programming (ISP) with JTAG

– Program entire chip in 10-20 seconds with no

involvement of the DSP

– Eliminate sockets for pre-programmed mem-

ory and logic devices

– Efficient manufacturing allows easy product

testing and Just-In-Time inventory

– Use low-cost FlashLINKTM cable with PC

■ Content Security

– Programmable Security Bit blocks access of

device programmers and readers

■ Zero-Power Technology

– Use for peripheral glue logic to keypads, con-

trol panel, displays, LCD, UART devices, etc.

– Eliminate PLDs and external logic devices

– Create state machines, chip selects, simple

shifters and counters, clock dividers, delays

– Simple PSDsoft ExpressTM software ...Free

– 75 μA standby at VCC=5V

■ Small Packaging

– 52-pin PQFP or 52-pin PLCC

– Packages are ECOPACK®

■ Memory Speed

– 90 ns

June 2008

Rev 2.0

This is information on a product still in production but not recommended for new designs.

1/63

Share Link: