GTL2012DP datasheet(6/14 Pages) NXP

6 / 14 page

GTL2012_1

Product data sheet

Rev. 01 — 9 August 2007

6 of 14

NXP Semiconductors

GTL2012

2-bit LVTTL to GTL transceiver

11. Dynamic characteristics

[1]

All typical values are at VCC = 3.3 V and Tamb =25 °C.

11.1 Waveforms

VM = 1.5 V at VCC ≥ 3.0 V; VM = 0.5VCC at VCC ≤ 2.7 V for A ports and control pins;

VM =Vref for B ports.

Table 8.

Dynamic characteristics

VCC = 3.3 V ± 0.3 V

Symbol

Parameter

Conditions

Min

Typ[1]

Max

Unit

GTL

−; Vref = 0.6 V; VTT = 0.9 V

tPLH

LOW-to-HIGH propagation delay

An to Bn; see Figure 4

2.8

tPHL

HIGH-to-LOW propagation delay

An to Bn; see Figure 4

3.3

tPLH

LOW-to-HIGH propagation delay

Bn to An; see Figure 5

5.3

tPHL

HIGH-to-LOW propagation delay

Bn to An; see Figure 5

5.2

GTL; Vref = 0.8 V; VTT = 1.2 V

tPLH

LOW-to-HIGH propagation delay

An to Bn; see Figure 4

2.8

tPHL

HIGH-to-LOW propagation delay

An to Bn; see Figure 4

3.4

tPLH

LOW-to-HIGH propagation delay

Bn to An; see Figure 5

5.2

tPHL

HIGH-to-LOW propagation delay

Bn to An; see Figure 5

4.9

GTL+; Vref = 1.0 V; VTT = 1.5 V

tPLH

LOW-to-HIGH propagation delay

An to Bn; see Figure 4

2.8

tPHL

HIGH-to-LOW propagation delay

An to Bn; see Figure 4

3.4

tPLH

LOW-to-HIGH propagation delay

Bn to An; see Figure 5

5.1

tPHL

HIGH-to-LOW propagation delay

Bn to An; see Figure 5

4.7

VM = 1.5 V for B port and Vref for

A port

B port to A port

a. Pulse duration

b. Propagation delay times

Fig 4.

Voltage waveforms

002aab140

3.0 V

0 V

002aab141

3.0 V

0 V

VOH

VOL

tPLH

tPHL

Vref

1.5 V

input

output

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