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参数资料
| 型号： | AS1118-BQFT |
| 厂商： | ams |
| 文件页数： | 3/21页 |
| 文件大小： | 0K |
| 描述： | IC DRIVER 64LED W/DELAY 24-TQFN |
| 标准包装： | 1 |
| 系列： | * |
AS1118
Datasheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
24 23 22 21 20 19
DIG2
DIG3
1
2
18 SEG E
17 SEGC
GND
DIG4
DIG5
RESETN
3
4
5
6
AS1118
16 VDD
15 SEGG
14 SEGB
13 SEGF
7
8
9
10 11 12
Pin Descriptions
Table 2. Pin Descriptions
Pin Name
SDI
TQFN(4x4)-24
22
Description
Serial-Data Input . Data is loaded into the internal 16-bit shift register on the
rising edge of pin SCL.
DIG0:DIG7
1, 2, 4, 5, 7, 8, 23, Digit Drive Lines . Eight digit drive lines that sink current from the display
24 cathode.
GND
LD
RESETN
I SET
SCL
SEGA:SEGG,
SEGDP
VDD
SDO
3
9
6
10
11
12-15,
17-20
16
21
Exposed Pad
Ground .
Load. Serial Data is loaded into the shift register while this pin is low. The last
16 bits of serial data are latched on the rising edge of this pin.
Reset Input. Pull this pin to low to resest all registers (set to default values) and
to put the device into shutdown.
Set Segment Current . Connect to V DD or a reference voltage through R SET to
set the peak segment current (see Selecting RSET Resistor Value and Using
External Drivers on page 15 ).
Serial-Clock Input . 10MHz maximum rate. Data is shifted into the internal shift
register on the rising edge of this pin. Data is clocked out of pin SDO on the
rising edge of this pin.
Seven Segment and Decimal Point Drive Lines . 8 seven-segment drives and
decimal point drive that source current to the display.
Positive Supply Voltage . Connect to +2.7V to +5.5V supply. Bypass this pin to
GND with a 10μF and a 0.1μF capacitor to avoid power supply ripple.
Serial-Data Output . The data into pin SDI is valid at pin SDO 16 clock cycles
later. This pin is used to daisy-chain several devices and is never high-
impedance.
Exposed Pad. This pin also functions as a heat sink. Solder it to a large pad or
to the circuit-board ground plane to maximize power dissipation.
www.austriamicrosystems.com/LED-Driver-ICs/AS1118
Revision 1.01
2 - 20
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相关代理商/技术参数 |
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| AS1118-XXX-I-A1-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A1-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A2-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A2-S | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
| AS1118-XXX-I-A3-D | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog Filter |
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