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부품번호 | SP3487 기능 |
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기능 | +3.3V Low Power Quad RS-485/RS-422 Line Drivers | ||
제조업체 | Sipex | ||
로고 | |||
전체 9 페이지수
® SP3486 and SP3487
+3.3V Low Power Quad
RS-485/RS-422 Line Drivers
■ RS-485 or RS-422 Quad Differential
Line Drivers
■ Operates from a single +3.3V supply
■ Interoperable with +5.0V logic
■ Tri-state Output Control
■ -7V to +12V Common-Mode Input
Voltage Range
■ Common Driver Enable Control (SP3486)
■ Independent Driver Enable Controls for
each pair of Drivers (SP3487)
■ Compatibility with LTC486
and SN75172 (SP3486)
■ Compatibility with LTC487
and SN75174 (SP3487)
DESCRIPTION
The SP3486 and the SP3487 are +3.3V low power quad drivers that meet the specifications
of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with
Sipex's SP486 and SP487 devices as well as popular industry standards. The SP3486 and
SP3487 feature Sipex's BiCMOS process allowing low power operation without sacrificing
performance. The SP3486 and SP3487 meet the electrical specifications of RS-485 and
RS-422 serial protocols up to 10Mbps under load. The SP3486 features a common driver
enable control. The SP3487 provides independent driver enable controls for each pair of
drivers. Both devices feature tri-state outputs and a -7V to +12V common-mode input voltage
range.
DI1 1
DO1A 2
DO1B 3
EN 4
DO2B 5
DO2A 6
DI2 7
GND 8
1
2
SP3486 16 VCC
15 DI4
4
14 DO4A
13 DO4B
12 EN
11 DO3B
10 DO3A
3
9 DI3
DI1 1
DO1A 2
DO1B 3
EN1/EN2 4
DO2B 5
DO2A 6
DI2 7
GND 8
1
2
SP3487 16 VCC
15 DI4
4
14 DO4A
13 DO4B
12 EN3/EN4
11 DO3B
10 DO3A
3
9 DI3
10/15/02
SP3486/3487 Low Power Quad RS485/422 Line Drivers
1
© Copyright 2002 Sipex Corporation
PINOUT — SP3487
DI1 1
DO1A 2
DO1B 3
EN1/EN2 4
DO2B 5
DO2A 6
DI2 7
GND 8
1
2
SP3487 16 VCC
15 DI4
4
14 DO4A
13 DO4B
12 EN3/EN4
11 DO3B
10 DO3A
3
9 DI3
INPUT
DI
H
L
H
L
X
ENABLES
EN EN
HX
HX
XL
XL
LH
OUTPUTS
OUTA OUTB
HL
LH
HL
LH
Hi–Z
Hi–Z
Table 1. SP3486 Truth Table
Pin 8 — GND — Digital Ground.
Pin 13 — DO4B — Driver 4 output B.
Pin 14 — DO4A — Driver 4 output A.
Pin 15 — DI4 — Driver 4 Input — If Driver 4
output is enabled, logic 0 on DI4 forces driver
output DO A low and DO B high. A logic 1 on DI
44
4
with Driver 4 output enabled forces driver DO4A
high and DO B low.
4
Pin 16—VCC—Positive Supply +3.00V<VCC
<+3.60V
SP3487 PINOUT
Pin 1 — DI1 — Driver 1 Input — If Driver 1 output
is enabled, logic 0 on DI1 forces driver output
DO1A low and DO1B high. A logic 1 on DI1 with
Driver 1 output enabled forces driver DO A high
1
and DO B low.
1
Pin 2 — DO A — Driver 1 output A.
1
Pin 3 — DO1B — Driver 1 output B.
Pin 4 — EN1/EN2 — Driver 1 and 2 Output
Enable. Please refer to SP3487 Truth Table (2).
Pin 9 — DI3 — Driver 3 Input — If Driver 3 output
is enabled, logic 0 on DI3 forces driver output
DO3A low and DO3B high. A logic 1 on DI3 with
Driver 3 output enabled forces driver DO3A high
and DO3B low.
Pin 10 — DO3A — Driver 3 output A.
Pin 11 — DO3B — Driver 3 output B.
Pin 12 — EN /EN — Driver 3 and 4 Output
34
Enable. Please refer to SP3487 Truth Table (2).
Pin 13 — DO4B — Driver 4 output B.
Pin 14 — DO4A — Driver 4 output A.
Pin 15 — DI4 — Driver 4 Input — If Driver 4
output is enabled, logic 0 on DI4 forces driver
output DO4A low and DO4B high. A logic 1 on DI4
with Driver 4 output enabled forces driver DO4A
high and DO4B low.
Pin 16 —VCC —Positive Supply +3.00V < VCC
< +3.60V
Pin 5 — DO2B — Driver 2 output B.
Pin 6 — DO2A — Driver 2 output A.
Pin 7 — DI2 — Driver 2 Input — If Driver 2 output
is enabled, logic 0 on DI forces driver output
2
DO A low and DO B high. A logic 1 on DI with
22
2
Driver 2 output enabled forces driver DO A high
2
and DO2B low.
INPUT
ENABLES
OUTPUTS
DI EN1/EN2 or EN3/EN4 OUTA OUTB
H H HL
L H LH
X L Hi–Z Hi–Z
Table 2. SP3487 Truth Table
10/15/02
SP3486/3487 Low Power Quad RS485/422 Line Drivers
4
© Copyright 2000 Sipex Corporation
4페이지 PACKAGE: PLASTIC
DUAL–IN–LINE
(NARROW)
E1 E
D1 = 0.005" min.
(0.127 min.)
D
e = 0.100 BSC
(2.540 BSC)
B1
B
ALTERNATE
END PINS
(BOTH ENDS)
A1 = 0.015" min.
(0.381min.)
A = 0.210" max.
(5.334 max).
A2
L
DIMENSIONS (Inches)
Minimum/Maximum
(mm)
16–PIN
A2 0.115/0.195
(2.921/4.953)
B 0.014/0.022
(0.356/0.559)
B1 0.045/0.070
(1.143/1.778)
C 0.008/0.014
(0.203/0.356)
D 0.780/0.800
(19.812/20.320)
E 0.300/0.325
(7.620/8.255)
E1 0.240/0.280
(6.096/7.112)
L 0.115/0.150
(2.921/3.810)
Ø 0°/ 15°
(0°/15°)
C
Ø
eA = 0.300 BSC
(7.620 BSC)
10/15/02
SP3486/3487 Low Power Quad RS485/422 Line Drivers
7
© Copyright 2002 Sipex Corporation
7페이지 | |||
구 성 | 총 9 페이지수 | ||
다운로드 | [ SP3487.PDF 데이터시트 ] |
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부품번호 | 상세설명 및 기능 | 제조사 |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |