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DSP1627

Agere Systems
Part Number DSP1627
Manufacturer Agere Systems
Description DSP1627 Digital Signal Processor
Published Apr 3, 2005
Detailed Description Data Sheet March 2000 DSP1627 Digital Signal Processor 1 Features s s Full-speed in-circuit emulation hardware develop...
Datasheet PDF File DSP1627 PDF File

DSP1627
DSP1627

Overview
Data Sheet March 2000 DSP1627 Digital Signal Processor 1 Features s s Full-speed in-circuit emulation hardware development system on-chip.
Supported by DSP1627 software and hardware development tools.
Optimized for digital cellular applications with a bit manipulation unit for higher coding efficiency.
On-chip, programmable, PLL clock synthesizer.
14 ns and 11 ns instruction cycle times at 5 V, 10 ns instruction cycle time at 3.
0 V, and 20 ns and 12.
5 ns instruction cycle times at 2.
7 V, respectively.
Mask-programmable memory map option: The DSP1627x36 features 36 Kwords on-chip ROM.
The DSP1627x32 features 32 Kwords on-chip ROM and access to 16 Kwords external ROM in the same map.
Both feature 6 Kwords on-chip, dual-port RAM and a secure option for on-chip ROM.
Low power consumption: — <5.
5 mW/MIPS typical at 5 V.
— <1.
5 mW/MIPS typical at 2.
7 V.
Flexible power management modes: — Standard sleep: 0.
5 mW/MIPS at 5 V.
0.
12 mW/MIPS at 2.
7 V.
— Sleep with slow internal clock: 1.
4 mW at 5 V.
0.
4 mW at 2.
7 V.
— Hardware STOP (pin halts DSP): <20 µA.
Mask-programmable clock options: crystal oscillator, small signal, and CMOS.
Low-profile TQFP package (1.
5 mm) available.
Sequenced accesses to X and Y external memory.
Object code compatible with the DSP1617.
Single-cycle squaring.
16 x 16-bit multiplication and 36-bit accumulation in one instruction cycle.
Instruction cache for high-speed, program-efficient, zerooverhead looping.
Dual 25 Mbits/s serial I/O ports with multiprocessor capability—16-bit data channel, 8-bit protocol channel.
8-bit parallel host interface: — Supports 8- or 16-bit transfers.
— Motorola* or Intel † compatible.
8-bit control I/O interface.
256 memory-mapped I/O ports.
s s s 2 Description The DSP1627 is Lucent Technologies Microelectronics Group first digital signal processor offering 100 MIPS operation at 3.
0 V and 80 MIPS operation at 2.
7 V with a reduction in power consumption.
Designed specifically for applications requiring low power dissi...


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