In the Same 13 X 13-mm Board Space as a Chip-Scale-Package (CSP) Microprocessor, the Multi-Chip Modules Provide a 100-MHz SuperH(R) Device and Two 8-MB SDRAM Chips
Hitachi Semiconductor (America) Inc. today introduced two multi-chip module (MCM) series, the HJ93D1 and the HJ931. The new MCMs in a stack configuration combine a SuperH microprocessor (MPU) and multiple synchronous DRAM (SDRAM) chips in a compact package. For example, the HJ93D1 series can have a 100-Megahertz (MHz) SH3-DSP SH7729R MPU with two 8-Megabyte (MB) SDRAMs in a small (13 x 13 x 1.7-mm) package that fits in the same circuit board area as a tiny Chip-Scale Package (CSP) MPU. The resulting space saving -- about 60 percent -- is an invaluable aid in the design of small handheld digital consumer products such as Internet Appliances.
The two new MCM series expands and strengthens Hitachi's MCM product lines. The HJ94, HJ93D and HJ93 series MCMs that launched the line in February 2001 have 133- or 200-MHz processors and include 16 or 32 MB of memory. They bring the advantages of MCM packaging to products for markets that are more cost sensitive.
Designer's Choice: RISC/DSP or RISC MPU
The HJ93D1 MCM contains a SH3-DSP series RISC/DSP MPU which has a digital signal processor (DSP) with high-speed voice and image data compression/expansion processing capabilities. This makes the HJ93D1 MCM an excellent choice for products such as multimedia devices with a built-in browser, as well as digital video cameras and digital still cameras.
The HJ931 MCM has a SH-3 series RISC MPU. The low power consumption of this MPU makes the HJ931 MCM an ideal choice for portable information terminals such as handheld PCs and PDAs.
Lower Noise and Shorter Development Time
Besides offering impressive space savings, the HJ93D1 and HJ931 MCMs generate lower EMI (Electromagnetic Interference) noise than designs that use individual processor and memory chips. The MCMs also help shorten system development times. The standard-product versions eliminate the task of integrating the MPU and memory. Custom MCMs can be developed and manufactured in five to eight weeks -- much faster than ASICs -- to meet special requirements such as flash memory.
An extensive range of hardware and software development tools and support products -- including the E10A card PC-card or PCI-card real-time emulator -- eases the design and debug of systems that use the new SuperH-based MCMs.
Price and Availability (for example):
Microprocessor SH7729R SH7709S (SH3-DSP core) (SH-3 core) at 100 MHz at 100 MHz
Package 13 x 13 x 1.7 mm 13 x 13 x 1.7 mm 218 pin LFBGA 218 pin LFBGA Memory Capacity 16 MB 16 MB
Hitachi Series Number HJ93D1BP HJ931BP
Sample $45.22/ $41.75/ Price/Availability November 2001 November 2001
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