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RAMPack B
SERIAL STATIC RAM MODULE
Get Type Title Description
 
PDF
RPB_DS
Datasheet and communication protocol for the RAMPack B
ZIP
AN051-055
Source files for AN051, AN052, AN053, and AN055 from datasheet
ZIP

AN056
Using RAMPack B with Parallax BASIC Stamp™ IISX
       
1 or 2 wire serial interface
first-in/first out buffer mode
6 pin SIP package 1.6" x 1.625"
multiple baud rates
NVRAM can replace socketed SRAM
 
1 to 49 units
 NA
50 to 99 units $25
100 to 249 units $22
250 to 499 units $20
500 or more call for pricing
Special order of 50+ units required, pricing TBD due to obsolescence.
Serial Interface Board (SIB)
   

The RAMPack B (RPB) is an easy to use serial SRAM module that can hold up to 32,768 bytes of data. Data is loaded into and read out of the RAMPack B through a serial interface. Serial data should be TTL level, in an 8N1 format, with 5 baud rates supported (1.2K, 2.4K, 4.8K, 9.6K, and 19.2K).

There is an additional first-in / first-out (FIFO) buffer mode that can be used to automatically store serial data. AN055 shows one example of a circuit that multiplexes a master unit and another serial data device to the RAMPacks serial input line. This technique allows the RAMPack B to store data received in memory, and allows the master to retrieve that data at will.

The RAMPack B is shipped with 32K bytes of SRAM which is socketed. The SRAM may be replaced by NVRAM by the customer.
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