Datenblatt-pdf.com


PCA3353C Schematic ( PDF Datasheet ) - NXP Semiconductors

Teilenummer PCA3353C
Beschreibung 8-bit microcontrollers with DTMF generator and 128 bytes EEPROM
Hersteller NXP Semiconductors
Logo NXP Semiconductors Logo 




Gesamt 30 Seiten
PCA3353C Datasheet, Funktion
INTEGRATED CIRCUITS
DATA SHEET
PCA3351C; 52C; 53C;
PCD3351A; 52A; 53A
8-bit microcontrollers with DTMF
generator and 128 bytes EEPROM
Product specification
Supersedes data of 1996 Dec 18
File under Integrated Circuits, IC03
1999 Oct 28






PCA3353C Datasheet, Funktion
Philips Semiconductors
8-bit microcontrollers with DTMF generator
and 128 bytes EEPROM
Product specification
PCA3351C; 52C; 53C;
PCD3351A; 52A; 53A
5 PINNING INFORMATION
5.1 Pinning
(1) PCA335xC denotes:
PCA3351C, PCA3352C or
PCA3353C.
PCD335xA denotes:
PCD3351A, PCD3352A or
PCD3353A.
handbook, halfpage
P0.1 1
28 P0.0
P0.2 2
27 P2.3
P0.3 3
26 P2.2
P0.4 4
P0.5 5
25 P2.1
24 VDD
P0.6 6
23 TONE
P0.7 7 PCA335xC 22 VSS
PCD335xA
T1 8
(1) 21 P2.0
XTAL1 9
20 P1.7/MDY
XTAL2 10
19 P1.6
RESET 11
18 P1.5
CE/T0 12
17 P1.4
P1.0 13
16 P1.3
P1.1 14
15 P1.2
MLA538
Fig.2 Pin configuration for DIP28 (SOT117-1) and SO28 (SOT136-1).
handbook, full pagewidth
n.c. 1
24 P2.1
P0.5 2
23 VDD
P0.6 3
22 TONE
P0.7 4
T1 5
XTAL1 6
PCA335xCH
PCD335xAH
(1)
21 VSS
20 P2.0
19 P1.7/MDY
XTAL2 7
18 P1.6
RESET 8
(1) PCA335xCH denotes:
PCA3351CH, PCA3352CH or
PCA3353CH.
PCD335xAH denotes:
PCD3351AH, PCD3352AH or
PCD3353AH.
17 n.c.
MGB795
Fig.3 Pin configuration for LQFP32 (SOT358-1).
1999 Oct 28
6

6 Page









PCA3353C pdf, datenblatt
Philips Semiconductors
8-bit microcontrollers with DTMF generator
and 128 bytes EEPROM
Product specification
PCA3351C; 52C; 53C;
PCD3351A; 52A; 53A
7 EEPROM AND TIMER 2 ORGANIZATION
The PCD335xA and PCA335xC have 128 bytes of
Electrically Erasable Programmable Read-Only Memory
(EEPROM). Such non-volatile storage provides data
retention without the need for battery backup. In telecom
applications, the EEPROM is used for storing redial
numbers and for short dialling of frequently used numbers.
More generally, EEPROM may be used for customizing
microcontrollers, such as to include a PIN code or a
country code, to define trimming parameters, to select
application features from the range stored in ROM.
The most significant difference between a RAM and an
EEPROM is that a bit in EEPROM, once written to a
logic 1, cannot be cleared by a subsequent write
operation. Successive write accesses actually perform a
logical OR with the previously stored information.
Therefore, to clear a bit, the whole byte must be erased
and re-written with the particular bit cleared. Thus, an
erase-and-write operation is the EEPROM equivalent of a
RAM write operation
Whereas read access times to an EEPROM are
comparable to RAM access times, write and erase access
times are much slower at 5 ms each. To make these
operations more efficient, several provisions are available
in the PCD335xA and PCA335xC.
First, the EEPROM array is structured into 32 four-byte
pages (see Fig.5) permitting access to 4 bytes in parallel
(write page, erase/write page and erase page). It is also
possible to erase and write individual bytes. Finally, the
EEPROM address register provides auto-incrementing,
allowing very efficient read and write accesses to
sequential bytes.
To simplify the erase and write timing, the derivative 8-bit
down-counter (Timer 2) with reload register is provided.
In addition to EEPROM timing, Timer 2 can be used for
general real-time tasks, such as for measuring signal
duration and for defining pulse widths.
1999 Oct 28
12

12 Page





SeitenGesamt 30 Seiten
PDF Download[ PCA3353C Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
PCA3353C8-bit microcontrollers with DTMF generator and 128 bytes EEPROMNXP Semiconductors
NXP Semiconductors
PCA3353CH8-bit microcontrollers with DTMF generator and 128 bytes EEPROMNXP Semiconductors
NXP Semiconductors

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche