MAX6850 MAXIM [Maxim Integrated Products], MAX6850 Datasheet - Page 3

• Manufacturer Part Number: MAX6850
• Description: 4-Wire Interfaced, 7-, 14-, and 16-Segment Alphanumeric Vacuum-Fluorescent Display Controller
• Manufacturer: MAXIM [Maxim Integrated Products]

DC ELECTRICAL CHARACTERISTICS (continued)
(Typical operating circuit, V+ = 2.7V to 3.6V, T
4-Wire Interfaced, 7-, 14-, and 16-Segment Alpha-
Note 1: All parameters tested at T
Note 2: Guaranteed by design.
Output Rise and Fall Time
PHASE1, PHASE2, PORT0,
PORT1, PUMP, VFLOAD,
VFDOUT, VFCLK, VFBLANK
Output High-Voltage
PHASE1, PHASE2, PORT0,
PORT1, PUMP, VFLOAD,
VFDOUT, VFCLK, VFBLANK
Output Low-Voltage
PHASE1, PHASE2, PORT0,
PORT1, PUMP, VFLOAD,
VFDOUT, VFCLK, VFBLANK
Output Short-Circuit Source
Current PHASE1, PHASE2,
PORT0, PORT1, PUMP, VFLOAD,
VFDOUT, VFCLK, VFBLANK
Output Short-Circuit Sink Current
PHASE1, PHASE2, PORT0,
PORT1, PUMP, VFLOAD,
VFDOUT, VFCLK, VFBLANK
4-WIRE SERIAL INTERFACE TIMING CHARACTERISTICS (Figure 8)
SCLK Clock Period
SCLK Pulse Width High
SCLK Pulse Width Low
CS Fall to SCLK Rise Setup Time
SCLK Rise to CS Rise Hold Time
DIN Setup Time
DIN Hold Time
Minimum CS Pulse High
DOUT Cascade Setup Time
PORT0, PORT1
VFD INTERFACE TIMING CHARACTERISTICS (Figure 11)
VFCLK Clock Period
VFCLK Pulse Width High
VFCLK Pulse Width Low
VFCLK Rise to VFD Load Rise
Hold Time
VFDOUT Setup Time
VFLOAD Pulse High
numeric Vacuum-Fluorescent Display Controller
PARAMETER
_______________________________________________________________________________________
A
= +25°C. Specifications over temperature are guaranteed by design.
SYMBOL
I
t
I
t
OHSC
t
VCSW
OLSC
t
t
t
VCSH
V
t
t
t
t
t
V
CSW
t
CSH
t
CSU
VCH
t
t
CSS
t
VCP
VCL
VDS
RFT
CH
DH
CP
CL
DS
OH
OL
A
= T
C
I
I
Output programmed high, output short
circuit to GND (Note 2)
Output programmed low, output short
circuit to V+ (Note 2)
PORT0 and/or PORT1 enabled as DOUT
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
(Note 2)
SOURCE
SINK
LOAD
MIN
= 10 mA
to T
= 100pF
= 10 mA
MAX
, unless otherwise noted.) (Note 1)
CONDITIONS
V + - 0.6
MIN
38.4
500
250
250
245
9.5
9.5
9.5
19
19
19
19
50
5
2
TYP
62
72
MAX
2050
125
125
0.4
25
UNITS
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
V
V
3