User`s manual
Introduction 
848A is next member of Windows 95/98/ME/NT/2000/XP 
based B+K PRECISION specialized programmers. 
Programmer is built to meet the demands of the development 
labs and field engineers for a specialized low-cost memory 
programmer. 
848A supports memory types up to 32 pins - EPROM, 
EEPROM, NVRAM, Flash EPROM and serial EEPROM - 
including low voltage types. 848A isn't only programmer, but 
also static RAM tester. 
848A provides very competitive price with excellent hardware 
design for reliable programming. Offer outstanding "value for 
money" in this class. Performance, dimensions and speed of 
848A can be utilized mainly in the maintenance. 
848A interfaces with the IBM PC Pentium compatible or 
higher, portable or desktop personal computers through any 
parallel (printer) port. 
848A has the powerful TTL pindriver, which deliver signals 
without overshoot or ground bounce for all supported devices. 
Pin drivers provide TTL levels in the range suitable also for the 
low-voltage devices. Generators for supply voltage and 
programming voltage are digitally controlled in wide range of 
voltages. 
848A performs programming verification at the marginal level 
of supply voltage, which, obviously, improves programming 
yield, and guarantees long data retention. 
848A is driven by an easy-to-use control program with pull-
down menus, hot keys and on-line help. Selecting of device is 
performed by its class, by manufacturer or simply by typing a 
fragment of vendor name and/or part number. 
Standard device-related commands (read, blank check, 
program, verify, erase) are enhanced by some test functions 
(signature-byte check), and some special functions 
(autoincrement). 
All known data formats are supported. Automatic file format 
detection and conversion during load of file. 
The rich-featured autoincrement function enables to assign 
individual serial numbers to each programmed device - or 
simply increments a serial number, or the function enables to 
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