SCL5616 Datasheet, PDF (6/6 Pages) Allegro MicroSystems – 2-FUNCTION, 4-DIGIT LCD AUTOMOTIVE CLOCK-PROGRAMMABLE

5616
2-FUNCTION, 4-DIGIT LCD AUTOMOTIVE CLOCK
Stored Data Verification. In the verify mode, the complement value
of the information stored in the PROM cells is brought out directly to
the segment output terminals for easy verification of the stored data.
If a bit is programmed (high), the appropriate segment output is turned
ON (low). The segments represent the binary equivalent of the
number of frequency correction data pulses entered.
Frequency Selection Pulses
Segment
64 32 16 8 4 2 1
b4 c4 d4 e4 c3 e3 c2
RECOMMENDED FLASH
PROGRAMMING CHARACTERISTICS
at T_A = +25°C, Logic Levels are V_DD and Ground
(except PROGRAM High)
Characteristic
PROGRAM High (18 V) to DATA Low
SELECT Valid to DATA Low
DATA Low to DATA High
DATA High to DATA Low
DATA Store Pulse Duration
DATA High to PROGRAM Low
PROGRAM Low to SELECT Change
SELECT Low (Verify) to DATA Valid
DATA Hold from End of Verify
Symbol
t_PHDL
t_SVDL
t_DLH
t_DHL
t_wD
t_DHPL
t_PLSX
t_SLDV
t_SHDX
Min.
1.0
25
1.0
1.0
10
1.0
1.0
—
—
Max. Units
— µs
— µs
1.5 µs
— µs
— ms
— µs
— µs
1.0 µs
10 ns
Allegro MicroSystems, Inc. reserves the right to
make, from time to time, such departures from the detail
specifications as may be required to permit improve-
ments in the design of its products.
The information included herein is believed to be
accurate and reliable. However, Allegro MicroSystems,
Inc. assumes no responsibility for its use; nor for any
infringements of patents or other rights of third parties
which may result from its use.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 [phone]