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Introduction
844USB is next member of new generation of Windows
95/98/Me/NT/2000/XP based B+K PRECISION universal
programmers. Programmer is built to meet the demands of the
development labs and field engineers to universal, but portable
programmer.
844USB is a small, fast and powerful programmer of all kinds
of programmable devices. Using build-in in-circuit serial
programming (ISP) connector the programmer is able to
program ISP capable chips in-circuit.
844USB provides
very competitive
price but
excellent
hardware design for reliable programming. Nice "value for
money" in this class.
Very fast programming due to high-speed FPGA driven
hardware and USB 2.0 full speed port. It is surely faster than
competitors in this category.
844USB interfaces with the IBM PC Pentium compatible or
higher, portable or desktop personal computers through USB
port. Therefore you can take programmer and move it to
another PC without assembly/disassembly of PC.
844USB
has
40 powerful
TTL pindrivers provide
H/L/pull_up/pull_down and read capability for each pin of
socket. Advanced pindrivers incorporate high-quality high-
speed circuitry to deliver signals without overshoot or ground
bounce for all supported devices. Pin drivers operate down to
1.8V so you'll be ready to program the full range of today's
advanced low-voltage devices.
The programmer performs device insertion test (wrong
device position in socket) and contact check (poor contact pin-
to-socket) before it programs each device. These capabilities,
supported by signature-byte check help prevent chip damage
due to operator error.
Programmer's hardware offers enough resources for selftest ,
that control program is any time be able to check pindrivers,
present and correct level of all voltages, check the timing and
communication between programmer and PC.
844USB programmer performs programming verification at
the marginal level of supply voltage, which, obviously,
improves programming yield, and guarantees long data
retention.
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