5-BIT DIFFERENTIAL REGISTER DESCRIPTION FEATURES Differential D, CLK and Q Extended 100E VEE range of –4.2V to –5.5V VBB output for single-ended use 1100MHz min. toggle frequency Asynchronous Master Reset Fully compatible with Motorola MC10E/100E452 Available in 28-pin PLCC package The SY10/100E452 are 5-bit differential registers with differential data (inputs and outputs) and clock. The registers are triggered by a positive transition of the positive clock (CLK) input. A high on the Master Reset (MR) asynchronously resets all registers so that the Q outputs go LOW. The differential input structures are clamped so that the inputs of unused registers can be left open without upsetting the bias network of the devices. The clamping action will assert the /D and the /CLK sides of the inputs. Because of the edge-triggered flip-flop nature of the devices, simultaneously opening both the clock and data inputs will result in an output which reaches an unidentified but valid state. The fully differential design of the devices makes them ideal for very high frequency applications where a registered data path is necessary. Q0 Q0 R 25 24 23 22 21 20 19 Q Q1 Q1 R D2 D2 D Q Q2 26 18 Q3 27 17 Q3 CLK VEE 28 16 VBB 2 VCC Q2 Q2 D2 D2 3 13 4 12 TOP VIEW PLCC J28-1 1 5 6 7 15 14 8 9 D0 D MR CLK VCCO Q0 D1 D1 Q4 Q VCCO Q4 D D3 D3 D0 D0 PIN CONFIGURATION D4 D4 BLOCK DIAGRAM Q1 Q1 10 11 D3 D3 D Q Q3 Q0 R D1 D0 Q2 D1 ■ ■ ■ ■ ■ ■ ■ SY10E452 SY100E452 PIN NAMES Q3 R D4 D4 CLK CLK Pin D Q Function D [0:4], /D [0:4] Differential Data Inputs Q4 MR Master Reset Input Q4 CLK, /CLK Differential Clock Input VBB VBB Reference Output Q [0:4], Q [0:4] Differential Data Outputs VCCO VCC to Output R MR VBB Rev.: D 1 Amendment: /0 Issue Date: May, 1999 SY10E452 SY100E452 Micrel DC ELECTRICAL CHARACTERISTICS VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND TA = -40°C Symbol Parameter Min. VBB Output Reference Voltage 10E -1.43 100E -1.38 IIH Input HIGH Current IEE Power Supply Current VCMR Common Mode Range(1) 10E 100E TA = 0°C TA = +25°C TA = +85°C Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit — — -1.30 -1.26 -1.38 -1.38 — — -1.27 -1.26 -1.35 -1.38 — — -1.25 -1.26 -1.31 -1.38 — — -1.19 -1.26 V — — 150 — — 150 — — 150 — — 150 µA — — 74 74 89 89 — — 74 74 89 89 — — 74 74 89 89 — — 74 85 89 102 mA -2.0 — -0.4 -2.0 — -0.4 -2.0 — -0.4 -2.0 — -0.4 V NOTE: 1. VCMR is referenced to the most positive side of the differential input signal. Normal operation is obtained when the input signals are within the VCMR range and the input swing is greater than VPP (min.) and <1V. AC ELECTRICAL CHARACTERISTICS VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND TA = -40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit fMAX Max. Toggle Frequency 1000 1400 — 1100 1400 — 1100 1400 — 1100 1400 — tPLH tPHL Propagation Delay to Output CLK (Diff) CLK (SE) MR MHz 425 375 375 600 600 625 850 900 900 475 425 425 600 600 625 800 850 850 475 425 425 600 600 625 800 850 850 475 425 425 600 600 625 800 850 850 tS Set-up Time, D 175 –50 — 150 –50 — 150 –50 — 150 –50 — ps tH Hold Time, D 225 50 — 200 50 — 200 50 — 200 50 — ps tRR Reset Recovery Time 750 450 — 700 450 — 700 450 — 700 450 — ps tPW Minimum Pulse Width CLK MR 400 400 — — — — 400 400 — — — — 400 400 — — — — 400 400 — — — — ps ps tskew Within-Device Skew(1) — 50 — — 50 — — 50 — — 50 — ps VPP (AC) Minimum Input Swing(2) 150 — — 150 — — 150 — — 150 — — mV tr tf Rise/Fall Time 20–80% 250 475 725 275 475 675 275 475 675 275 475 675 ps NOTES: 1. Within-device skew is defined as identical transitions on similar paths through a device. 2. Minimum input swing for which AC parameters are guaranteed. PRODUCT ORDERING CODE Ordering Code Package Type Operating Range SY10E452JC J28-1 Commercial SY10E452JCTR J28-1 SY100E452JC SY100E452JCTR Ordering Code Package Type Operating Range SY10E452JI J28-1 Industrial Commercial SY10E452JITR J28-1 Industrial J28-1 Commercial SY100E452JI J28-1 Industrial J28-1 Commercial SY100E452JITR J28-1 Industrial 2 SY10E452 SY100E452 Micrel 28 LEAD PLCC (J28-1) Rev. 03 3 SY10E452 SY100E452 Micrel MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA + 1 (408) 980-9191 FAX + 1 (408) 914-7878 WEB http://www.micrel.com This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. © 2000 Micrel Incorporated 4