SC16C554IB64,157 NXP Semiconductors, SC16C554IB64,157 Datasheet - Page 9
![IC UART QUAD W/FIFO 64-LQFP](/photos/6/98/69856/568-64-lqfp_sot314-2_sml.jpg)
SC16C554IB64,157
Manufacturer Part Number
SC16C554IB64,157
Description
IC UART QUAD W/FIFO 64-LQFP
Manufacturer
NXP Semiconductors
Specifications of SC16C554IB64,157
Number Of Channels
4, QUART
Fifo's
16 Byte
Voltage - Supply
2.5V, 3.3V, 5V
With Auto Flow Control
Yes
With Irda Encoder/decoder
Yes
With False Start Bit Detection
Yes
With Modem Control
Yes
With Cmos
Yes
Mounting Type
Surface Mount
Package / Case
64-LQFP
Transmit Fifo
16Byte
Receive Fifo
16Byte
Transmitter And Receiver Fifo Counter
Yes
Data Rate
5Mbps
Package Type
LQFP
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Mounting
Surface Mount
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
568-1321
935270074157
SC16C554IB64
935270074157
SC16C554IB64
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
SC16C554IB64,157
Manufacturer:
NXP Semiconductors
Quantity:
10 000
Philips Semiconductors
Table 2:
9397 750 11616
Product data
Symbol
16/68
A0
A1
A2
A3, A4
CDA, CDB,
CDC, CDD
CS
CSA, CSB,
CSC, CSD
CTSA, CTSB,
CTSC, CTSD
Pin description
Pin
PLCC68 LQFP64 LQFP80
31
34
33
32
20, 50
9, 27,
43, 61
16
16, 20,
50, 54
11, 25,
45, 59
5.2 Pin description
-
24
23
22
-
64, 18,
31, 49
-
7, 11,
38, 42
2, 16,
33, 47
-
48
47
46
-
19, 42,
59, 2
-
28, 33,
68, 73
23, 38,
63, 78
Quad UART with 16-byte FIFO and infrared (IrDA) encoder/decoder
Type
I
I
I
I
I
I
I
I
I
Rev. 04 — 19 June 2003
Description
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, INT A-INTD, and CSA-CSD are re-assigned
with the logical 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-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.
Address 0 select bit. Internal registers address selection in 16 and
68 modes.
Address 1 select bit. Internal registers address selection in 16 and
68 modes.
Address 2 select bit. Internal registers address selection in 16 and
68 modes.
Address 3-4 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. These pins are not available on 64-pin packages
which operate in the 16 mode only.
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.
Chip Select (Active-LOW). In the 68 mode, this pin functions as a
multiple channel chip enable. In this case, all four UARTs (A-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-A4. when the
16 mode is selected (68-pin devices), this pin functions as CSA (see
definition under CSA, CSB). This pin is not available on 64-pin
packages which operate in the 16 mode only.
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 SC16C554/554D for the channel(s) addressed.
Individual UART sections (A, B, C, D) are addressed by providing a
logic 0 on the respective CSA-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.
Clear to Send (Active-LOW). These inputs are associated with
individual UART channels A through D. A logic 0 on the CTS pin
indicates the modem or data set is ready to accept transmit data from
the SC16C554/554D. Status can be tested by reading MSR[4]. This
pin only affects the transmit or receive operations when Auto CTS
function is enabled via the Enhanced Feature Register EFR[7] for
hardware flow control operation.
SC16C554/554D
© Koninklijke Philips Electronics N.V. 2003. All rights reserved.
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