Dynamic Terminations for Low-Power High-Speed Chip Interconnection in Portable Equipment

Takayuki KAWAHARA; Masakazu AOKI; Katsutaka KIMURA

Dynamic Terminations for Low-Power High-Speed Chip Interconnection in Portable Equipment

Takayuki KAWAHARA, Masakazu AOKI, Katsutaka KIMURA

Full Text Views

0

Share
Cite this

Summary :

Two types of dynamic termination, latch-type and RC-type, are useful for low-power high-speed chip interconnection where the transmission line is terminated only if the signal is changed. The gate of the termination MOS in the latch-type is driven by a feedback inverter, and that in the RC-type is driven by a differentiating signal through the resistor and capacitor. The power dissipation is 13% for the latch-type, and 11% for the RC-type in a DC termination scheme, and the overshoot is 32% for the latch-type, and 16% for the RC-type in an open scheme, both at a signal amplitude of 2 V. The RC-type is superior for signal swing as low as a 1 V. On the other hand, RC termination requires large capacitance, and thus high power. Diode termination is not effective for a small swing because of the large ON voltage of diodes.

Publication: IEICE TRANSACTIONS on Electronics Vol.E78-C No.4 pp.404-413

Publication Date: 1995/04/25

Publicized

Online ISSN

DOI

Type of Manuscript: Special Section PAPER (Special Issue on Low-Voltage, Low-Power Integrated Circuits)

Category: Digital Circuits

Cite this

Copy

Takayuki KAWAHARA, Masakazu AOKI, Katsutaka KIMURA, "Dynamic Terminations for Low-Power High-Speed Chip Interconnection in Portable Equipment" in IEICE TRANSACTIONS on Electronics, vol. E78-C, no. 4, pp. 404-413, April 1995, doi: .
Abstract: Two types of dynamic termination, latch-type and RC-type, are useful for low-power high-speed chip interconnection where the transmission line is terminated only if the signal is changed. The gate of the termination MOS in the latch-type is driven by a feedback inverter, and that in the RC-type is driven by a differentiating signal through the resistor and capacitor. The power dissipation is 13% for the latch-type, and 11% for the RC-type in a DC termination scheme, and the overshoot is 32% for the latch-type, and 16% for the RC-type in an open scheme, both at a signal amplitude of 2 V. The RC-type is superior for signal swing as low as a 1 V. On the other hand, RC termination requires large capacitance, and thus high power. Diode termination is not effective for a small swing because of the large ON voltage of diodes.
URL: https://globals.ieice.org/en_transactions/electronics/10.1587/e78-c_4_404/_p

Copy

@ARTICLE{e78-c_4_404,
author={Takayuki KAWAHARA, Masakazu AOKI, Katsutaka KIMURA, },
journal={IEICE TRANSACTIONS on Electronics},
title={Dynamic Terminations for Low-Power High-Speed Chip Interconnection in Portable Equipment},
year={1995},
volume={E78-C},
number={4},
pages={404-413},
abstract={Two types of dynamic termination, latch-type and RC-type, are useful for low-power high-speed chip interconnection where the transmission line is terminated only if the signal is changed. The gate of the termination MOS in the latch-type is driven by a feedback inverter, and that in the RC-type is driven by a differentiating signal through the resistor and capacitor. The power dissipation is 13% for the latch-type, and 11% for the RC-type in a DC termination scheme, and the overshoot is 32% for the latch-type, and 16% for the RC-type in an open scheme, both at a signal amplitude of 2 V. The RC-type is superior for signal swing as low as a 1 V. On the other hand, RC termination requires large capacitance, and thus high power. Diode termination is not effective for a small swing because of the large ON voltage of diodes.},
keywords={},
doi={},
ISSN={},
month={April},}

Copy

TY - JOUR
TI - Dynamic Terminations for Low-Power High-Speed Chip Interconnection in Portable Equipment
T2 - IEICE TRANSACTIONS on Electronics
SP - 404
EP - 413
AU - Takayuki KAWAHARA
AU - Masakazu AOKI
AU - Katsutaka KIMURA
PY - 1995
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E78-C
IS - 4
JA - IEICE TRANSACTIONS on Electronics
Y1 - April 1995
AB - Two types of dynamic termination, latch-type and RC-type, are useful for low-power high-speed chip interconnection where the transmission line is terminated only if the signal is changed. The gate of the termination MOS in the latch-type is driven by a feedback inverter, and that in the RC-type is driven by a differentiating signal through the resistor and capacitor. The power dissipation is 13% for the latch-type, and 11% for the RC-type in a DC termination scheme, and the overshoot is 32% for the latch-type, and 16% for the RC-type in an open scheme, both at a signal amplitude of 2 V. The RC-type is superior for signal swing as low as a 1 V. On the other hand, RC termination requires large capacitance, and thus high power. Diode termination is not effective for a small swing because of the large ON voltage of diodes.
ER -