PCF1175CT Philips Semiconductors, PCF1175CT Datasheet
PCF1175CT
Available stocks
Related parts for PCF1175CT
PCF1175CT Summary of contents
Page 1
DATA SHEET PCF1175C 4-digit duplex LCD car clock Product specification Supersedes data of September 1993 File under Integrated Circuits, IC16 INTEGRATED CIRCUITS 1997 Apr 16 ...
Page 2
... SMD (SO28 set mode. ORDERING INFORMATION TYPE NUMBER NAME PCF1175CT SO28 PCF1175CU PCF1175CU/10 Notes 1. See Fig.1 and Chapter “Package outline” for pin layout and package details. 2. See Chapter “Chip dimensions and bonding pad locations” for pad layout and package details. ...
Page 3
... Apr DATA 2 3 OSC IN OSC OUT MODE PCF1175CT TS 8 ENABLE FLASH 11 SEL B4/C4 Fig.1 Pin configuration, PCF1175CT, (SO28). 3 Product specification PCF1175C 28 BP1 27 BP2 26 AM/PM 25 A2/ADEG1 24 B1/C1 23 F2/E2 22 G2/D2 21 B2/C2 20 A4/COL 19 F3/E3 18 G3/AD3 17 B3/C3 16 F4/E4 15 G4/D4 MSB222 ...
Page 4
... Philips Semiconductors 4-digit duplex LCD car clock FUNCTIONAL DESCRIPTION AND TESTING Outputs The circuit outputs multiplexed data (duplex) to the LCD. Generation of BP1 and BP2 (three-level backplane signals) and the output signals are shown in Fig. TIME PM a. 12-hour mode. TIME (b) b ...
Page 5
... Philips Semiconductors 4-digit duplex LCD car clock LCD voltage (see Fig.5) The adjustable voltage regulator controls the supply voltage (see Section “LCD voltage programming”) in relation to temperature for good contrast, for example when +25 C, then + ...
Page 6
... Philips Semiconductors 4-digit duplex LCD car clock 12/24-hour mode Operation in 12-hour or 24-hour mode is selected by connecting MODE left open-circuit and a reset occurs, the mode will change from 12-hour to 24-hour mode or vice versa. Power-on After connecting the supply, the start-up mode is: MODE connected 12-hour mode, 1:00 AM ...
Page 7
... Philips Semiconductors 4-digit duplex LCD car clock The number (n) is stored in a non-volatile memory which is achieved by the following steps (see Fig.6): 1. Set SEL to V and a level The quartz-frequency deviation f/f is measured and (n) is calculated (see Table first pulse t is applied to the DATA input clears the EEPROM to give the highest backplane frequency E 4 ...
Page 8
... Philips Semiconductors 4-digit duplex LCD car clock clears cells V DD DATA 1 pulse generators MSB223 1997 Apr 16 incrementing counters ...
Page 9
... Philips Semiconductors 4-digit duplex LCD car clock LIMITING VALUES In accordance with the Absolute Maximum Rating System (IEC 134). SYMBOL PARAMETER V supply voltage DD I supply current DD V input voltage I T operating ambient temperature amb T storage temperature stg Note 1. Connecting the supply voltage with reverse polarity, will not harm the circuit, provided the current is limited external resistor ...
Page 10
... Philips Semiconductors 4-digit duplex LCD car clock CHARACTERISTICS amb frequency tolerance = 30 10 SYMBOL PARAMETER Supply V supply voltage DD V supply voltage variation DD TC supply voltage variation due to temperature I supply current DD C capacitance EXT Oscillator t start time osc ...
Page 11
... Philips Semiconductors 4-digit duplex LCD car clock CHIP DIMENSIONS AND BONDING PAD LOCATIONS 2. Chip area: 5. Bonding pad dimensions: 110 m 110 m. Chip thickness: 381 25 m. Fig.7 Bonding pad locations, PCF1175CU; 28 terminals. 1997 Apr 16 y A2/ADEG1 AM/PM BP2 BP1 PCF1175CU S1 DATA OSC IN OSC OUT ...
Page 12
... Philips Semiconductors 4-digit duplex LCD car clock Table 2 Bonding pad locations (dimensions in m) All x/y coordinates are referenced to the bottom left pad (V PAD S1 DATA OSC IN OSC OUT V SS MODE ENABLE V DD FLASH SEL S2 B4/C4 chip corner (max. value) 1997 Apr 16 ), see Fig.7. ...
Page 13
... Philips Semiconductors 4-digit duplex LCD car clock APPLICATION INFORMATION BP1 28 BP2 27 AM/PM COUNTER OSC IN 3 OSC OUT 4 SEL 12 DATA MODE ( placed close to the IC. 1997 Apr 16 DECODER DECODER HOURS MINUTES COUNTER COUNTER ADJUSTABLE OSCILLATOR DIVIDER EEPROM CONTROL ...
Page 14
... Philips Semiconductors 4-digit duplex LCD car clock PACKAGE OUTLINE SO28: plastic small outline package; 28 leads; body width 7 pin 1 index 1 DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.30 2.45 mm 2.65 0.25 0.10 2.25 0.012 0.096 inches 0.10 0.01 0.004 0.089 Note 1 ...
Page 15
... Philips Semiconductors 4-digit duplex LCD car clock SOLDERING Introduction There is no soldering method that is ideal for all IC packages. Wave soldering is often preferred when through-hole and surface mounted components are mixed on one printed-circuit board. However, wave soldering is not always suitable for surface mounted ICs, or for printed-circuits with high population densities ...
Page 16
... Philips Semiconductors 4-digit duplex LCD car clock DEFINITIONS Data sheet status Objective specification This data sheet contains target or goal specifications for product development. Preliminary specification This data sheet contains preliminary data; supplementary data may be published later. Product specification This data sheet contains fi ...
Page 17
... Philips Semiconductors 4-digit duplex LCD car clock 1997 Apr 16 NOTES 17 Product specification PCF1175C ...
Page 18
... Philips Semiconductors 4-digit duplex LCD car clock 1997 Apr 16 NOTES 18 Product specification PCF1175C ...
Page 19
... Philips Semiconductors 4-digit duplex LCD car clock 1997 Apr 16 NOTES 19 Product specification PCF1175C ...
Page 20
... Tel. +46 8 632 2000, Fax. +46 8 632 2745 Switzerland: Allmendstrasse 140, CH-8027 ZÜRICH, Tel. +41 1 488 2686, Fax. +41 1 481 7730 Taiwan: Philips Semiconductors, 6F, No. 96, Chien Kuo N. Rd., Sec. 1, TAIPEI, Taiwan Tel. +886 2 2134 2865, Fax. +886 2 2134 2874 Thailand: PHILIPS ELECTRONICS (THAILAND) Ltd., 209/2 Sanpavuth-Bangna Road Prakanong, BANGKOK 10260, Tel ...