gtl1655 NXP Semiconductors, gtl1655 Datasheet

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gtl1655

Manufacturer Part Number
gtl1655
Description
Lvttl-to-gtl/gtl+ Bus Transceiver With Live Insertion.
Manufacturer
NXP Semiconductors
Datasheet

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1. Description
The GTL1655 is a 16-bit bus transceiver that incorporates HIGH-drive
LOW-output-impedance (100 mA/12 ) with LVTTL-to-GTL/GTL+ and
GTL/GTL+-to-LVTTL logic level translation.
The device is configured as two 8-bit transceivers that share a common clock and a
master output enable pin, but also have individual latch timing and output enable
signals. D-type flip-flops and D-type latches enable three modes of data transfer;
Clocked, Latched, or Transparent. The GTL1655 provides the ideal interface between
cards operating at LVTTL levels and backplanes using GTL/GTL+ signal levels. The
combination of reduced output swing, reduced input threshold levels and configurable
edge control provides the higher speed operation of GTL/GTL+ backplanes.
The GTL1655 can be used at GTL (V
V
LVTTL signal levels and are 5 V tolerant. Port B is designed to operate at GTL or
GTL+ signal levels, with V
The latch enable pins (nLEAB and nLEBA), the output enable pins (nOEAB, nOEBA)
and the clock pin (CP) are used to control the data flow through the two 8-bit
transceivers (n = 1 or 2). When nLEAB is set HIGH, the device will operate in the
transparent mode Port A to Port B. HIGH-to-LOW transitions of nLEAB will latch A
data independently of CP HIGH or LOW (latched mode). LOW-to-HIGH transitions of
CP will clock A data to the B port if nLEAB is LOW (clocked mode). Using the control
pins nLEBA, nOEBA and CP in the same way, data flow from Port B to Port A can be
controlled. The OE pin can be used to disable all of the I/O pins.
To optimize signal integrity, the GTL1655 features an adjustable edge rate control
(V
edge rate to suit an application’s load conditions.
The GTL1655 permits true live insertion capability by incorporating:
REF
ERC
BIAS V
insertion.
I
Power-up 3-state, which ensures outputs are high-impedance during power-up,
thus preventing bus contention issues. Once V
3-state circuit relinquishes control of the outputs to the OE pin. To ensure the
outputs remain 3-state, the OE pin should be tied to V
GTL1655
16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion
Rev. 01 — 11 May 2004
off
= 1.0 V) signalling levels. Port A and the control inputs are compliant with
). By adjusting V
to disable current flow through powered-off I/Os.
CC
, to pre-charge outputs and avoid disturbing active data during card
ERC
REF
between GND and V
providing the reference voltage input.
TT
= 1.2 V, V
CC
CC
, a designer can adjust the Port B
REF
is above 1.5 V, the power-up
= 0.8 V) or GTL+ (V
CC
via a pull-up resistor.
Product data
TT
= 1.5 V,

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gtl1655 Summary of contents

Page 1

... CP will clock A data to the B port if nLEAB is LOW (clocked mode). Using the control pins nLEBA, nOEBA and CP in the same way, data flow from Port B to Port A can be controlled. The OE pin can be used to disable all of the I/O pins. To optimize signal integrity, the GTL1655 features an adjustable edge rate control ( adjusting V ERC edge rate to suit an application’ ...

Page 2

... GND; CC ERC REF GND; CC ERC REF GND GND GND i CC Rev. 01 — 11 May 2004 GTL1655 ) CC and GND pins CC Min Typ Max Unit - ...

Page 3

... Philips Semiconductors 4. Ordering information Table 2: Type number GTL1655DGG TSSOP64 plastic thin shrink small outline package; 64 leads; Standard packing quantities and other packaging data are available at www.philipslogic.com/packaging. 4.1 Ordering options Table 3: Type number GTL1655DGG 9397 750 12936 Product data 16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion ...

Page 4

... GND 2A6 25 40 2B6 GND 26 39 GND 2A7 27 38 2B7 2B8 CC 2A8 29 36 BIAS_V GND 30 35 2LEAB 2OEAB 31 34 2LEBA 2OEBA 002aaa763 Rev. 01 — 11 May 2004 GTL1655 ERC CC REF CC © Koninklijke Philips Electronics N.V. 2004. All rights reserved ...

Page 5

... Port B 62 latch enable 2B-to-2A 63 latch enable 1A-to-1B 64 clock input Rev. 01 — 11 May 2004 GTL1655 © Koninklijke Philips Electronics N.V. 2004. All rights reserved ...

Page 6

... OTHER CHANNELS 41 V REF 61 V ERC 2LEAB 34 2LEBA 32 2OEBA 31 2OEAB 2A1 OTHER CHANNELS Rev. 01 — 11 May 2004 GTL1655 1D 59 1B1 C1 CP 002aaa764 1D 48 2B1 C1 CP 002aaa765 © Koninklijke Philips Electronics N.V. 2004. All rights reserved ...

Page 7

... Output Enable function table [1]. OEAB OEBA Port B edge-rate control (V ) function table ERC [1]. ERC Nominal voltage V CC GND Rev. 01 — 11 May 2004 GTL1655 Output Mode Port A Port isolation L L transparent H H transparent L L registered H H registered [ previous state ...

Page 8

... Table note [1] Conditions V < port A port ERC REF output in HIGH or power-OFF state; port A output in HIGH or power-OFF state; port B port A port B port A Section 8 “Recommended operating conditions” Rev. 01 — 11 May 2004 GTL1655 and Table note [2] Min Max Unit 0.5 +4.6 V 0.5 +4 [3] 0.5 +7.0 V [3] 0 ...

Page 9

... GTL+ 0.87 port B 0 except port B 0 port REF except port B 2 0.6 ERC CC port B - except port ERC - port A - port A - port B - 200 40 Rev. 01 — 11 May 2004 GTL1655 Max Unit 3.6 V 1.26 V 1.65 V 0. REF 0 ...

Page 10

... 1 port 3 0 port 3 GND 3 0 LOW LOW Rev. 01 — 11 May 2004 GTL1655 [1] Min Typ Max - - 1 0.4 ...

Page 11

... CC V (BIAS 3 (port (BIAS (port (port 1.5 V Rev. 01 — 11 May 2004 GTL1655 [1] Min Typ Max - - [ ...

Page 12

... Figure GND; ERC see Figure GND; ERC see Figure GND; ERC see Figure GND; ERC see Figure ERC GND ERC REF Rev. 01 — 11 May 2004 GTL1655 15 and 16). Min Typ Max Unit ...

Page 13

... V sk(o) 9397 750 12936 Product data 16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion Figure 15). see Figure 11 see Figure 5 see Figure 9 see Figure 13 see Figure 14 TT Rev. 01 — 11 May 2004 GTL1655 Min Typ Max Unit 160 - - MHz 1.8 2.6 4.9 ns 2.3 4.2 5.3 ns 1.5 3.1 4 ...

Page 14

... ERC CC see Figure GND; ERC see Figure GND; ERC see Figure GND; ERC see Figure GND; ERC see Figure ERC GND ERC REF Rev. 01 — 11 May 2004 GTL1655 Min Typ Max and 16). Min Typ Max 3.0 4.7 6.1 2.3 4.4 6.5 3.3 5 ...

Page 15

... V OL 002aaa766 Test condition: OEAB = LEBA = 0 V Fig timing. 3.0 V Port B 1.5 V 1.5 V input 3.0 V LEBA 1.5 V input 0 V 002aaa768 Test condition: OEAB = Fig 7. LEBA set-up and hold times. Rev. 01 — 11 May 2004 GTL1655 Min Typ Max 160 - - 1.8 2.6 4.9 2.3 4.2 5.3 1.5 3.1 4.4 1.5 3.7 4.6 1.3 2.7 4.0 1.4 3.1 3 ...

Page 16

... REF output V OL 002aaa774 Test conditions: LEBA = 3 V; Port Fig 13 OEBA to A propagation delay. 1.5 V 1.5 V input t t PZH PHZ Rev. 01 — 11 May 2004 GTL1655 1.5 V 1 PLH W PHL 1.5 V 1.5 V 002aaa771 V V REF REF t t PLH PHL 1 ...

Page 17

... L = Termination resistance should be equal to the output impedance PULSE GENERATOR = Load resistor Load capacitance including jig and probe capacitance Termination resistance should be equal to the output impedance Z T Rev. 01 — 11 May 2004 GTL1655 open R GND L 500 500 ...

Page 18

... 2 scale (1) ( 0.2 0.2 17.1 6.2 8.3 0.5 1 0.1 0.1 16.9 6.0 7.9 REFERENCES JEDEC JEITA MO-153 Rev. 01 — 11 May 2004 GTL1655 SOT646 detail 0.75 0.89 8 0.2 0.08 0.1 o 0.45 0.61 0 EUROPEAN ISSUE DATE PROJECTION 00-08-21 03-02-18 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. ...

Page 19

... Product data 16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion 2 called small/thin packages. Rev. 01 — 11 May 2004 GTL1655 3 350 mm so called © Koninklijke Philips Electronics N.V. 2004. All rights reserved ...

Page 20

... Suitability of surface mount IC packages for wave and reflow soldering methods [1] [3] , LBGA, LFBGA, SQFP, [3] , TFBGA, USON, VFBGA , SO, SOJ [8] [9] [8] , PMFP , WQCCN..L Rev. 01 — 11 May 2004 GTL1655 Soldering method Wave Reflow not suitable suitable [4] not suitable suitable suitable suitable [5][6] not recommended suitable ...

Page 21

... CPCN Description 01 20040511 - Product data (9397 750 12936). 9397 750 12936 Product data 16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion 10 C measured in the atmosphere of the reflow Rev. 01 — 11 May 2004 GTL1655 © Koninklijke Philips Electronics N.V. 2004. All rights reserved ...

Page 22

... Rev. 01 — 11 May 2004 GTL1655 Fax: + 24825 © Koninklijke Philips Electronics N.V. 2004. All rights reserved ...

Page 23

... Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: 11 May 2004 Document order number: 9397 750 12936 16-bit LVTTL-to-GTL/GTL+ bus transceiver with live insertion GTL1655 ...

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