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| 型号： | SC16C554BIBM,128 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 2/57页 |
| 文件大小： | 0K |
| 描述： | IC UART QUAD SOT414-1 |
| 标准包装： | 2,000 |
| 通道数： | 4，QUART |
| FIFO's： | 16 字节 |
| 电源电压： | 2.5V，3.3V，5V |
| 带自动流量控制功能： | 是 |
| 带故障启动位检测功能： | 是 |
| 带调制解调器控制功能： | 是 |
| 带CMOS： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-LQFP（7x7） |
| 包装： | 带卷 (TR) |
| 其它名称： | 935279067128 SC16C554BIBM-F SC16C554BIBM-F-ND |
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SC16C554B_554DB
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 4 — 8 June 2010
10 of 58
NXP Semiconductors
SC16C554B/554DB
5 V, 3.3 V and 2.5 V quad UART, 5 Mbit/s (max.) with 16-byte FIFOs
5.2 Pin description
Table 2.
Pin description
Symbol
Pin
Type
Description
PLCC68
LQFP64
LQFP80 HVQFN48
16/68
31
-
14
I
16/68 Interface type select (input with internal
pull-up). This input provides the 16 (Intel) or 68
(Motorola) bus interface type select. The functions of
IOR, IOW, INTA to INTD, and CSA to CSD are
re-assigned with the logic state of this pin. When this
pin is a logic 1, the 16 mode interface (16C554) is
selected. When this pin is a logic 0, the 68 mode
interface (68C554) is selected. When this pin is a
logic 0, IOW is re-assigned to R/W, RESET is
re-assigned to RESET, IOR is not used, and
INTA to INTD are connected in a wire-OR configuration.
The wire-OR outputs are connected internally to the
open-drain IRQ signal output. This pin is not available
on 64-pin packages which operate in the 16 mode only.
A0
34
24
48
17
I
Address 0 select bit. Internal registers address
selection in 16 and 68 modes.
A1
33
23
47
16
I
Address 1 select bit. Internal registers address
selection in 16 and 68 modes.
A2
32
22
46
15
I
Address 2 select bit. Internal registers address
selection in 16 and 68 modes.
A3
20
-
9
I
Address 3 to Address 4 select bits. When the 68
mode is selected, these pins are used to address or
select individual UARTs (providing CS is a logic 0). In
the 16 mode, these pins are re-assigned as chip
selects, see CSB and CSC.
A4
50
-
31
I
CDA
964
19
-
I
Carrier Detect (active LOW). These inputs are
associated with individual UART channels A through D.
A logic 0 on this pin indicates that a carrier has been
detected by the modem for that channel.
CDB
27
18
42
-
I
CDC
43
31
59
24
I
CDD
61
49
2
-
I
CS
16
-
5
I
Chip Select (active LOW). In the 68 mode, this pin
functions as a multiple channel chip enable. In this
case, all four UARTs (A to D) are enabled when the CS
pin is a logic 0. An individual UART channel is selected
by the data contents of address bits A3 to A4. when the
16 mode is selected (68-pin devices), this pin functions
as CSA (see definition under CSA, CSB).
CSA
16
7
28
5
I
Chip Select A, B, C, D (active LOW). This function is
associated with the 16 mode only, and for individual
channels ‘A’ through ‘D’. When in 16 mode, these pins
enable data transfers between the user CPU and the
SC16C554B/554DB for the channel(s) addressed.
Individual UART sections (A, B, C, D) are addressed by
providing a logic 0 on the respective CSA to CSD pin.
When the 68 mode is selected, the functions of these
pins are re-assigned. 68 mode functions are described
under their respective name/pin headings.
CSB
20
11
33
9
I
CSC
50
38
68
31
I
CSD
54
42
73
35
I
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SC16C554BIBM-F | 功能描述:UART 接口集成电路 16CB 2.5V-5V 4CH UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16C554BIBM-S | 功能描述:UART 接口集成电路 4CH. UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16C554BIBS | 功能描述:UART 接口集成电路 16CB 2.5V-5V 4CH UART 16B FIFO RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| SC16C554BIBS,157 | 制造商:NXP Semiconductors 功能描述: |
| SC16C554BIBS,528 | 功能描述:UART 接口集成电路 16CB 2.5V-5V 4CH RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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