sc16c652 NXP Semiconductors, sc16c652 Datasheet - Page 4

• Manufacturer Part Number: sc16c652
• Description: Dual Uart With 32 Bytes Of Transmit And Receive Fifos
• Manufacturer: NXP Semiconductors

Philips Semiconductors
5. Pinning information
Table 2:
9397 750 11634
Product data
Symbol
A0
A1
A2
CSA, CSB
D0-D7
GND
Pin description
28
27
26
10, 11
44-48, 1-3 I/O
17
LQFP48
Pin
5.1 Pinning
5.2 Pin description
Type
I
I
I
I
I
Fig 2. LQFP48 pin configuration.
Description
Address 0 select bit. Internal register address selection.
Address 1 select bit. Internal register address selection.
Address 2 select bit. Internal register address selection.
Chip Select A, B (Active-LOW). This function is associated with individual channels, A
through B. These pins enable data transfers between the user CPU and the SC16C652
for the channel(s) addressed. Individual UART sections (A, B) are addressed by providing
a logic 0 on the respective CSA, CSB pin.
Data bus (bi-directional). These pins are the 8-bit, 3-State data bus for transferring
information to or from the controlling CPU. D0 is the least significant bit and the first data
bit in a transmit or receive serial data stream.
Signal and power ground.
TXRDYB
OP2B
RXB
RXA
CSA
CSB
N.C.
TXA
TXB
D5
D6
D7
10
11
12
1
2
3
4
5
6
7
8
9
Rev. 04 — 20 June 2003
Dual UART with 32 bytes of transmit and receive FIFOs
SC16C652IB48
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
SC16C652
002aaa349
36
35
34
33
32
31
30
29
28
27
26
25
RESET
DTRB
DTRA
RTSA
OP2A
RXRDYA
INTA
INTB
A0
A1
A2
N.C.
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