NOT RECOMMENDED FOR NEW DESIGNS SY10E452 Micrel, Inc. SY100E452 5-BIT DIFFERENTIAL SY10E452 SY100E452 REGISTER FEATURES DESCRIPTION Differential D, CLK and Q The SY10/100E452 are 5-bit differential registers with differential data (inputs and outputs) and clock. The Extended 100E VEE range of 4.2V to 5.5V registers are triggered by a positive transition of the VBB output for single-ended use positive clock (CLK) input. A high on the Master Reset 1100MHz min. toggle frequency (MR) asynchronously resets all registers so that the Q Asynchronous Master Reset outputs go LOW. The differential input structures are clamped so that Fully compatible with Motorola MC10E/100E452 the inputs of unused registers can be left open without Available in 28-pin PLCC package 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. PIN NAMES BLOCK DIAGRAM Pin Function D0 D Q0 D0 D 0:4 , /D 0:4 Differential Data Inputs Q Q0 MR Master Reset Input R CLK, /CLK Differential Clock Input VBB VBB Reference Output D1 D Q1 Q 0:4 , Q 0:4 Differential Data Outputs D1 Q Q1 VCCO VCC to Output R D2 D Q2 D2 Q Q2 R D3 D Q3 D3 Q Q3 R D4 D Q4 D4 Q Q4 CLK R CLK MR VBB Rev.: F Amendment: /0 M9999-032206 1 Issue Date: March 2006 hbwhelp micrel.com or (408) 955-1690SY10E452 Micrel, Inc. SY100E452 PACKAGE/ORDERING INFORMATION (1) Ordering Information Package Operating Package Lead Part Number Type Range Marking Finish 25 24 23 22 21 20 19 SY10E452JI J28-1 Industrial SY10E452JI Sn-Pb 26 18 MR Q3 (2) SY10E452JITR J28-1 Industrial SY10E452JI Sn-Pb 27 17 CLK Q3 SY100E452JI J28-1 Industrial SY100E452JI Sn-Pb 28 16 CLK VCC TOP VIEW (2) 1 15 VEE PLCC Q2 SY100E452JITR J28-1 Industrial SY100E452JI Sn-Pb J28-1 2 14 VBB Q2 SY10E452JC J28-1 Commercial SY10E452JC Sn-Pb 3 13 D2 Q1 (2) SY10E452JCTR J28-1 Commercial SY10E452JC Sn-Pb 4 12 D2 Q1 56 7 8 9 10 11 SY100E452JC J28-1 Commercial SY100E452JC Sn-Pb (2) SY100E452JCTR J28-1 Commercial SY100E452JC Sn-Pb (3) SY10E452JY J28-1 Industiral SY10E452JY with Matte-Sn Pb-Free bar-line indicator (2, 3) 28-Pin PLCC (J28-1) SY10E452JYTR J28-1 Industrial SY10E452JY with Matte-Sn Pb-Free bar-line indicator (3) SY100E452JY J28-1 Industrial SY100E452JY with Matte-Sn Pb-Free bar-line indicator (2, 3) SY100E452JYTR J28-1 Industrial SY100E452JY with Matte-Sn Pb-Free bar-line indicator Notes: 1. Contact factory for die availability. Dice are guaranteed at T = 25C, DC electricals only. A 2. Tape and Reel. M9999-032206 2 hbwhelp micrel.com or (408) 955-1690 D3 D1 D3 D1 D0 D4 D4 D0 VCCO VCCO Q4 Q0 Q0 Q4