saa5355 NXP Semiconductors, saa5355 Datasheet

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saa5355

Manufacturer Part Number
saa5355
Description
Single-chip Colour Crt Controller Ftfrom
Manufacturer
NXP Semiconductors
Datasheet
Product specification
File under Integrated Circuits, IC02
DATA SHEET
SAA5355
Single-chip colour CRT controller
(FTFROM)
INTEGRATED CIRCUITS
March 1986

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saa5355 Summary of contents

Page 1

... DATA SHEET SAA5355 Single-chip colour CRT controller (FTFROM) Product specification File under Integrated Circuits, IC02 INTEGRATED CIRCUITS March 1986 ...

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... Single-chip colour CRT controller (FTFROM) GENERAL DESCRIPTION The SAA5355 FTFROM (Five-Two-Five-ROM single-chip VLSI NMOS crt controller capable of handling the display functions required for a 525-line, level-3 videotex decoder. Only minimal hardware is required to produce a videotex terminal using FTFROM the simplest configuration needs just a microcontroller and 4 Kbytes of display memory. ...

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... Philips Semiconductors Single-chip colour CRT controller (FTFROM) March 1986 3 Product specification SAA5355 ...

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... Upper data strobe input/output. Lower data strobe output. Data transfer acknowledge (open drain output). Bus request to microprocessor (open drain output). Address strobe output to external address latches. Read/write input/output. Also serves as send/receive for the link-through buffer. Positive supply voltage ( 5 V). 4 Product specification SAA5355 ...

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... Storage temperature range Outputs other than CLKO, OSCO and VDS are short-circuit protected. March 1986 Fig.2 Pinning diagram Imax V lmax V REF V Omax I Omax T amb T stg 5 Product specification SAA5355 0,3 to 7,5 V 0,3 to 7,5 V 0,3 to 10,0 V 0,3 to 3,0 V 0 125 C ...

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... 2 REF R REF Product specification SAA5355 MIN. TYP. MAX. UNIT 5,0 5,25 V 350 mA 7 note 2 V/V 0 2,7 V 125 ...

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... OFF V 2 OBL C OFF I 10 OFF V 2 OFF V 2 Product specification SAA5355 MAX. UNIT 0 0,4 V 200 pF 0,4 V 150 0,4 V 150 0 ...

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... March 1986 SYMBOL Product specification SAA5355 MIN. TYP. MAX. UNIT 3 2 0,8 V 2 ...

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... SAA t 20 ASU t 20 ASH t 0 AFS t 50 ATD t 220 HDS t 200 LDS t 125 HAS t 320 LAS 9 Product specification SAA5355 MAX. UNIT ...

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... UDA t REA t 40 DTL t 0 DLU t 0 DTR t 10 DSA t 10 DSH t 10 SRE t 0 UDR t 250 DSD t 0 AUL 10 Product specification SAA5355 MAX. UNIT 275 ns 100 210 ns 210 350 ...

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... SYMBOL t WCY t WUD t RES t ASS t LUS t DSS t DTA t DTR t DSH t DSA t SRE t UDW t UF6 t F6U = 25 pF 2,7 V REF 11 Product specification SAA5355 MIN. TYP. MAX. UNIT 500 100 ...

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... MHz. Fig.4 (a) Oscillator circuit for SAA5355 stand-alone sync mode and (b) equivalent circuit of crystal at resonance (see characteristics for values). Fig.5 Circuit arrangement giving one-of-sixteen reference voltage levels for the analogue outputs. March 1986 Fig ...

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... Philips Semiconductors Single-chip colour CRT controller (FTFROM) March 1986 Fig.6 Video timing. Fig.7 Memory access timing. 13 Product specification SAA5355 ...

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... Philips Semiconductors Single-chip colour CRT controller (FTFROM) Fig.9 Timing of microprocessor read from FTFROM. March 1986 Fig.8 Timing of link-through buffers. 14 Product specification SAA5355 ...

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... Philips Semiconductors Single-chip colour CRT controller (FTFROM) Fig.10 Timing of microprocessor write to FTFROM. March 1986 Fig.11 Timing of F1/F6 to memory access cycle. 15 Product specification SAA5355 ...

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Fig.12 Timing of synchronization and blanking outputs; all timings are nominal and assume f = 6,041957 MHz. F6 ...

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Fig.13 Vertical synchronization and blanking waveforms; separation of broad pulses = 4,717 s; equalizing pulse widths = 2,23 s. ...

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... A defined-display-area timing signal (pin 33) simplifies the application of external peripherals such as a light pen; this signal is nominally coincident with the character dot information. March 1986 Fig.14 Basic videotex decoder configuration. 18 Product specification SAA5355 each holds the 40 columns ...

Page 19

... For 9 lines per row applications, the characters will be as shown but with the last line removed from alpha characters and line 5 (labelling removed from mosaic and line drawing characters. (a) Fig.15 On-chip characters: (a) Table 0; (b) Table 1. March 1986 (b) 19 Product specification SAA5355 ...

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... Table 2. Table 3 contains the block mosaics for the basic alpha-mosaic service and also the new smooth mosaics. The four tables stored in the external RAM (Tables are used for DRCS. March 1986 (b) 20 Product specification SAA5355 ...

Page 21

... UDS and LDS) which are always asserted together to fetch a 16-bit word. The read/write control R/W is included although FTFROM only reads from the display memory. March 1986 lower = 16 bits). The upper and lower display RAM 21 Product specification SAA5355 ...

Page 22

... Philips Semiconductors Single-chip colour CRT controller (FTFROM) (1) 74LS373 octal transparent latch (3-state) Fig.17 Simply RAM interface circuit for display memory access. March 1986 Fig.18 Bus timing for display memory access. 22 Product specification SAA5355 ...

Page 23

... BR may be used either to generate an interrupt direct signal. To these ends, the warning time between the assertion of BR and the beginning of FTFROM’s bus activity is programmable to be between 0 and 22,84 s. March 1986 Fig.19 Display memory word/byte organization. 23 Product specification SAA5355 ...

Page 24

... The main data and address paths used in a connected 8-bit microprocessor system are shown in Fig.22. The interface is similar to that of the 16-bit system but here the display memory does not receive address, rather A0 is used as the major enabling signal for BUFEN (enables when HIGH). March 1986 Fig.20 Microprocessor access to register map. 24 Product specification SAA5355 ...

Page 25

... Philips Semiconductors Single-chip colour CRT controller (FTFROM) (1) 74LS373 octal transparent latch (3-state) (2) 74LS244 octal buffer (3-state) (3) 74LS245 octal transceiver (3-state) (4) SCN6800 microprocessor unit March 1986 Fig.21 Connected 16-bit microprocessor system. 25 Product specification SAA5355 ...

Page 26

... Philips Semiconductors Single-chip colour CRT controller (FTFROM) (1) 74LS373 octal transparent latch (3-state) (2) 74LS244 octal buffer (3-state) March 1986 Fig.22 Connected 8-bit microprocessor system. 26 Product specification SAA5355 ...

Page 27

... ROM, RAM and other peripherals by using isolating buffers as shown in Fig.23. The two parts of the system then operate independently and communicate only when the microprocessor accesses FTFROM’s register map or the display memory. (1) 74LS373 octal transparent latch (3-state) (2) 74LS244 octal buffer (3-state) (3) 74LS245 octal bus transceiver (3-state) March 1986 Fig.23 Disconnected 8-bit system. 27 Product specification SAA5355 ...

Page 28

... TCS. A dead time of 250 ns is built in to avoid resetting the counter at every tv line and so prevents screen jitter. Field synchronization is made using FTFROM’s internal field sync separator. March 1986 Fig.24 Stand-alone synchronization mode. Fig.25 Simple-slave (direct sync) mode. 28 Product specification SAA5355 ...

Page 29

... FTFROM’s field sync separator via the VCS input. In the phase-locked slave mode, the display derived from FTFROM can sync with that from a tv source or a local VLP player, thus giving picture-in-text display possibilities. March 1986 Fig.26 Phase-locked slave (indirect sync) mode. 29 Product specification SAA5355 ...

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... scale (1) ( 0.53 0.36 52.50 14.1 2.54 0.38 0.23 51.50 13.7 0.021 0.014 2.067 0.56 0.10 0.015 0.009 2.028 0.54 REFERENCES JEDEC EIAJ MO-015AJ 30 Product specification SAA5355 3.60 15.80 17.42 15.24 0.254 3.05 15.24 15.90 0.14 0.62 0.69 0.60 0.01 0.12 0.60 0.63 EUROPEAN ISSUE DATE PROJECTION SOT129-1 ...

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... Philips customers using or selling these products for use in such applications their own risk and agree to fully indemnify Philips for any damages resulting from such improper use or sale. March 1986 ). If the printed-circuit board has been pre-heated, forced cooling may stg max 31 Product specification SAA5355 ...

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